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What is the home audio system which is characterized by how the central

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wall mount speaker – China Manufacturer
Thank you for inquiry my wall mount speaker, Tel: +86.573.8468.1673, E-mail: futuresound@mailzj.cn
http://www.chinafuturesound.com/key-wall-mount-speaker-8/

What is the central home audio system? How its characteristics?

What is the central home audio system:

Home central sound system is a more professional name. Its meaning is achieved through a smart host to the whole house music system. Users can have any space anywhere in the home heard the high-quality, high-fidelity stereo music, and each room can be independent, intelligent, personalized control and operation, such as: free on-demand, source selection, volume control, timer switch time, call mute, and so on.

His main purpose is different according to the needs of those home-loving on-demand personalized music program, and different areas to achieve independence at home on demand, without disturbing each other. This allows you to every corner of the home such as: living room, bedroom, study, dining room, kitchen, bathroom, balcony, roof terrace and other places at any time to listen to music, make music, slow and graceful flow of your day s work to relieve tension and fatigue, independent personality in your family free to enjoy the music space to bring a better life. In addition, a weekend, you can also invite friends and family at home on the concert will be held in Kara OK or party. BYRON one hundred sharp smart host in the hard disk can store vast amounts of MP3, MP4 and VCD (MTV) songs, love to meet different
People of different ages and needs.

Home central sound system features:

1, the central control:

Is central to the smart host as the core source. By the host before the LCD touch screen to control the whole house of music playback. Also can be personalized by the owner in his room control.

2, the regional independent:

Each zone can be independently controlled without disturbing each other.

2, the operational intelligence:

No external sources, without just stay in the living room, without complex operation, the whole house audio system using the controller with a switching terminal, so that music is as simple as turn on the lights. Installed in the room on the LCD touch screen control panel, just a tap, music in the room immediately flowing, elegant and stylish LCD panels also make your living space science and technology have become more promise.

3, built-in large capacity hard disk:

Creative solution to the problem of home stereo audio sources. BYRON not one hundred sharp or insert any need for external audio equipment. Unlike traditional home stereo needs an external CD discs, MP3 discs, U disk and other complicated procedures, and a small number of external music sources, not demand, not fun, can not really enjoy the background music of infinite charm. Built-in large capacity hard drive to solve all these problems.

4, choose Personalize, to free on-demand music:

The embedded design, built-in large capacity hard disk. Hard disk can store vast amounts of MP4, VCD and MP3 programs. Comprehensive family of different people to meet individual music needs. Such as: the home of a child can hear the whole set of fairy tales, songs, English language teaching materials. Once the home of the elderly can listen to the whole opera, drama programs. You do not need these any external devices, all programs can all be stored in the hard disk and can be set in advance on demand. The time to listen directly to the tap room to open the control panel on it. Very convenient, simple and fast. Borrow 一句广告词 \"I point my music.\" Want to hear what hears nothing, it does not Miaozai.

5, four-way radio functions:

With professional-grade high-sensitivity FM tuner, you can also listen to different regions of different FM program. Each region are independent operations.

6, the background music combined with Kara OK function:

Families with 100 sharp while background music is equivalent to have a professional-grade home karaoke OK player. The perfect combination of audio and video technology, so that the family needs of each person s musical preferences can be customized to achieve the significance of the product. TV host can be connected with the smart, hard disk where you can point to sing karaoke OK song or watch other video programs such as: family digital photos, wonderful movies, home videos, etc. Hard disk can be built massive Hominid original singers of the classic MTV music library, matched with high-fidelity stereo sound, home offices can have a K-star treatment.

7, full-function menu display:

All functions and settings are available through 1) front panel LCD touch screen; 2) room LCD control panel display and operation. Song way: the main menu, sub menu, the regional classification of the menu. Song selection methods are: alphabet song, song codes, song by singer name, song categories (pop, classical music, Chinese music, European music, etc.) the name of song by the composer, etc.

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Car audio consulting two

A: My Passat B5 present a plane without a CD, card, or a facelift to install CD, hope the panel is pure black, I do not know whether to recommend a style from the price, are the appropriate vehicle power CD?

A: The original Passat B5 cars can control plane 6-disc CD drive can be installed Panasonic 6-disc drive, but to use the special conversion cable. Dress black panel host, and now the market brand Kenwood, VDO Di Tang and other middle and high-end models mostly silver and gold. But the choice of car audio can not select only the appearance, but also choose their favorite sound. From the cost to the style, are the appropriate vehicle power CD, I believe that the choice VDO Di Tang is characterized by:
① The machine is a European style, suitable for European models, no wiring changes can be directly connected with the car line.
② The machine is a digital model, from radio, tape and CD are digitally processed sound clean and clear. Of course the Japanese middle, Kenwood is also a good choice.

B: I recently a SONY CDX-3500 does not read the dispatch, E-04 appear the words, how to solve?

A: CDX-3500 is a single-disc SONY CD player, single CD with a period of time can cause this problem, display the words E-04 There are several possibilities:
① laser surface contamination, needs cleaning.
② CCD mounted anti-record, you can have the word side up.
③ CCD record dirty, should clean the CDP Lu film.
④ need to adjust the laser head circuit.
⑤ laser head is damaged.

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how sound the horn

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high power speaker – China Manufacturer
Thank you for inquiry my high power speaker, Tel: +86.573.8468.1673, E-mail: futuresound@mailzj.cn
http://www.chinafuturesound.com/key-high-powered-speaker-1/

speaker is a kind of energy into the sound of a conversion device,
When the different electron energy spread coil, the coil produces a magnetic field energy and magnetic interaction,
This interaction causes the tray vibration, because the electron energy change at any time,
Speaker of the coil will move forward or backward movement, so the speaker will follow the movement tray,
This action makes this the density of air changes have produced the sound.

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Share DIY car audio capacitor with the Need

amplifier audio equipment in the field, a large aluminum electrolytic capacitors may account for almost most of the volume inside. Because each CV plot of aluminum electrolytic capacitors (C: capacitance, V: voltage) than other types of capacitors, their share of the smallest, and because they are cheap (for the capacitance per unit), it is a regular need to be used in large-capacity filter capacitors such as power, energy storage capacitors and other circuit.

Electrolytic capacitor is formed by electrolytic oxidation method and made into a film as a capacitor dielectric. The high-purity aluminum electrolytic capacitors is when the anode, and ethylene glycol, glycerol, boron, and ammonia, and so the composition of the paste as the electrolyte in the electrolyte in the electrolytic surface layer of the aluminum pole thin aluminum oxide film as a medium made into the capacitor. Electrolytic capacitor because the dielectric film can be very thin, so you can make a small capacity of the capacitor, the capacitor for the high-capacity main parts. But there are a lot of missing Ha electrolytic capacitors, for example, the frequency characteristics and temperature characteristics of poor wells, and large leakage current and dielectric loss, etc. In addition, when the polarity is reversed or both ends of the applied voltage exceeds the specification was, the security will be destroyed, the electrolyte will be gasification and burst (commonly known as the so-called breakdown)

There are many external environmental factors will lead to deterioration in performance electrolytic capacitor, such as temperature, humidity, pressure and vibration, electrical impact include the voltage, ripple current, and charge-discharge. Environmental factors in the temperature of the capacitor life the greatest impact, and make the smaller capacitance, loss increases. In addition, electrolytic capacitors because capacitor losses than the other (internal resistance) is large, the ripple current caused by the heat of life will be greatly affected. In addition, some pure Class A amplifier bias current required to cause high fever, high fever easily lead to serious all the relevant parts to shorten life, among which the power center of this electrolytic capacitor is staggering. Heat will cause rapid deterioration of performance electrolytic capacitor life and capacitance are reduced to only a fraction of the original, this way is tantamount to losing the role of filter capacitor, it is easy to machine failures will occur.

Then we introduce several circles in the sound quality electrolytic capacitors: First up is the famous SPRAGUE capacitance, in the expansion of HI-END advertised inside the machine, an occurrence rate of the Bay, covered the Krell, Mark Levinson, Cello, and other famous Factory machines, the power supply filter must come by it sits, in addition to countless number of multi-audio manufacturers also use SPRAGUE capacitors. SPRAGUE American system of high capacitance electrolytic capacitors, blue rubber packaging products to its excellent performance and stability, and long life. Electrolytic capacitors in the previous high number was small, when imported, SPRAGUE capacitance is DIY fans in search of scrap metal heap baby, ship-breaking second-hand second-hand parts monopoly provider, SPRAGUE capacitance is very sought-after hot item. Even from the scrap heap to SPRAGUE capacitance of the Xu are already quite old stuff, but it used up the same satisfactory performance, which also shows the life SPRAGUE capacitance is how long. SPRAGUE, however, the name may no longer easy to see the future, because it has been Japan s Nippon Chemi Con capacitors to the acquisition, but SPRAGUE all production lines may also maintain the original materials and practices, but the scale of production may vary, so the capacitor appearance other than skin color packaging and the original SPRAGUE capacitance remains the same, but the mark has been changed Nippon Chemi Con small shield rather than SPRAGUE. A careful reader can observe the name of newly manufactured machine, filter capacitor still seem no different with the previous, but in fact the word trade mark is not SPRAGUE but a small shield.

Amplifier audio equipment in the field, a large aluminum electrolytic capacitors may account for almost most of the volume inside. Because each CV plot of aluminum electrolytic capacitors (C: capacitance, V: voltage) than other types of capacitors, their share of the smallest, and because they are cheap (for the capacitance per unit), it is a regular need to be used in large-capacity filter capacitors such as power, energy storage capacitors and other circuit.

Electrolytic capacitor is formed by electrolytic oxidation method and made into a film as a capacitor dielectric. The high-purity aluminum electrolytic capacitors is when the anode, and ethylene glycol, glycerol, boron, and ammonia, and so the composition of the paste as the electrolyte in the electrolyte in the electrolytic surface layer of the aluminum pole thin aluminum oxide film as a medium made into the capacitor. Electrolytic capacitor because the dielectric film can be very thin, so you can make a small capacity of the capacitor, the capacitor for the high-capacity main parts. But there are a lot of missing Ha electrolytic capacitors, for example, the frequency characteristics and temperature characteristics of poor wells, and large leakage current and dielectric loss, etc. In addition, when the polarity is reversed or both ends of the applied voltage exceeds the specification was, the security will be destroyed, the electrolyte will be gasification and burst (commonly known as the so-called breakdown)

There are many external environmental factors will lead to deterioration in performance electrolytic capacitor, such as temperature, humidity, pressure and vibration, electrical impact include the voltage, ripple current, and charge-discharge. Environmental factors in the temperature of the capacitor life the greatest impact, and make the smaller capacitance, loss increases. In addition, electrolytic capacitors because capacitor losses than the other (internal resistance) is large, the ripple current caused by the heat of life will be greatly affected. In addition, some pure Class A amplifier bias current required to cause high fever, high fever easily lead to serious all the relevant parts to shorten life, among which the power center of this electrolytic capacitor is staggering. Heat will cause rapid deterioration of performance electrolytic capacitor life and capacitance are reduced to only a fraction of the original, this way is tantamount to losing the role of filter capacitor, it is easy to machine failures will occur.

Then we introduce several circles in the sound quality electrolytic capacitors: First up is the famous SPRAGUE capacitance, in the expansion of HI-END advertised inside the machine, an occurrence rate of the Bay, covered the Krell, Mark Levinson, Cello, and other famous Factory machines, the power supply filter must come by it sits, in addition to countless number of multi-audio manufacturers also use SPRAGUE capacitors. SPRAGUE American system of high capacitance electrolytic capacitors, blue rubber packaging products to its excellent performance and stability, and long life. Electrolytic capacitors in the previous high number was small, when imported, SPRAGUE capacitance is DIY fans in search of scrap metal heap baby, ship-breaking second-hand second-hand parts monopoly provider, SPRAGUE capacitance is very sought-after hot item. Even from the scrap heap to SPRAGUE capacitance of the Xu are already quite old stuff, but it used up the same satisfactory performance, which also shows the life SPRAGUE capacitance is how long. SPRAGUE, however, the name may no longer easy to see the future, because it has been Japan s Nippon Chemi Con capacitors to the acquisition, but SPRAGUE all production lines may also maintain the original materials and practices, but the scale of production may vary, so the capacitor appearance other than skin color packaging and the original SPRAGUE capacitance remains the same, but the mark has been changed Nippon Chemi Con small shield rather than SPRAGUE. A careful reader can observe the name of newly manufactured machine, filter capacitor still seem no different with the previous, but in fact the word trade mark is not SPRAGUE but a small shield.

Again is Germany s leading ROE electrolytic capacitors, ROE electrolytic capacitors in both the earlier and SPRAGUE capacitance can be said main audio brand in Europe and America only two choices, especially in Europe, audio equipment ROE capacitors used a lot, all kinds of horizontal legislation capacitor can often be seen on the circuit board. Speaking SPRAGUE ROE capacitor capacitance and HI-END audio equipment in the representation can Krell machine to do the expansion as a model, Krell power amplifier is the main filter capacitor sprague capacitor, the input stage and driver stage power amplification Ken capacitor , we use the ROE. Krell s preamp and digital equipment also follow suit, especially the Krell s preamp and digital equipment in the ROE capacitors are used for a certain use a liver-colored plastic shell packaging, EK variety of materials. ROE in the past most of the capacitor is golden yellow skin packaging, circuit board mounted inside the chassis golden one is truly beautiful, it could not help but think of glowing golden luster sound quality and tone, with a ROE of Australia as the main filter capacitor capacitance in design and in particular when exposed out of the capacitor to increase the equipment itself, advanced texture. However, recent ROE capacitors, small value capacitor packaging has been changed to black, and it is really frustrating in terms of aesthetics on.

Europe is really beautifully capacitance of its products, please move to the attention of Philips capacitors. Philips capacitors in these two years the new advanced equipment in the factory of the exposure is higher and higher, and covered the the price of the equipment, such as ONIX, expensive equipment, such as Goldmund, vacuum tube machine of the best god JADIS and the large number of other brands, Philips capacitors can gradually see where the strength of the domestic long-established supplier of advanced components, such as the original sound that has been strongly advocated Shantou Philips capacitors benefits. Philips capacitors packaging is blue, but the color is slightly more than the capacitance SPRAGUE, it has many series, including a more advanced model of its cans have many hexagonal shaped notch in order to enhance the mechanical strength of the capacitor, of course, cost is This will be more expensive.

Audio equipment used in film capacitors, fame first, most famous, the most important red magic pill or elixir known German WIMA container. Has not yet appeared in the early years when the so-called tonic parts, WIMA was the only commercially available high-level buy stuff. Although the materials and technological advances and market demand, various brands have been more advanced thin-film capacitor was dazzling, but should WIMA is the most well-known brands. The most famous WIMA capacitors, is undoubtedly the number of PP quality MKP-10 capacitors.

In WIMA, the audio products also use a lot, great history, is the same for the German brand ERO capacitors. ERO capacitors most commonly seen is green, some are blue, and WIMA also assembled on a board, side by side, it is truly beautiful. ERO is the brand of film capacitors, and a high ROE is another brand of electrolytic capacitors, the two letters the same, but in a different order, the reader is not confused. The same for the German brand, but audio products using them too much capacitance is Siemens, the brand electrolytic capacitors and film capacitors are the name of HI-END in Germany are willing to adopt plant MBL, and performed extremely well, so the strength can not be be underestimated.

Philips is a big business group, its manufacturing of products is really countless, from the most popular people s livelihood and home appliances, to the most cutting-edge space technology, the broad-based course, the production of capacitors, is not missing. It is home of the capacitor, is to present the appearance of a faint blue water, recently often found in audio equipment.

Rifa is a Swedish brand of high capacitance, quality common to the PP capacitor is blue, the sound performance characteristics and specifications are very good, but the price is very expensive, likewise, so there are very few audio manufacturers use, but I just use that three The sound of this brand name factory, you can probably understand its strength lies. That the three do? Danish Gryphon, U.S. Mark Leivenson and Cello.

Wonder capacitor capacitance and Relcap are quite a few years off while the thunder of the high capacitance, Wonder Capacitors to Counterpoint machines use the most famous, Audio Research also uses it, the appearance of white cylinder, sealing glue is green; Relcap places the most famous use of Audio Research, the appearance of yellow oval cylindrical.

French Solen capacitors also became popular very quickly in recent years, its appearance was cylindrical, black skin, with both ends sealed plastic brick red and gray two. It is by far, the only mass production of large-capacity capacitor MKP (up to 200F) of the well-known manufacturers, so Solen capacitors are extensively used in high-level speaker crossover among the examples are well-known author of: Danish Dynaudio speakers, United States of Infinity speakers (including IRS-V alt column), France JM Lab speakers (the flagship of the ALCOR and UTOPIA is more unique in the horn back on the heart, showed off a transparent acrylic super special custom Solen capacitors, to show the material of the ordinary.) In addition, many well-known manufacturers in the crystal machine or tube used in both the electrical and mechanical way too many.

Capacitance to the history of MIT, is the youngest high capacitance, the listing date, maybe even three years not to, but since a launch, which can be "sensational martial arts, alarmed many religions" to describe, was once the HI-END Sound Circle the topic. One reason for its special structure, MIT is a complex capacitor capacitance (Multi cap), meaning that a capacitor is actually an internal capacitor in parallel by multiple composite, what advantage do it? Can once again reduce the capacitor s equivalent series resistance and internal equivalent series inductance, capacitance closer to MIT makes an ideal capacitor, so all the technical specifications and some features are also very good Lo! Of course, doing so is to pay a price, MIT capacitors expensive price, enough to make use of it to discourage manufacturers or individuals, which is its second notable place. In addition to its capacity in terms of the same size is relatively large, in particular about the density of circuit components on the real equipment, ease of application would be restricted. Its appearance is white oval cylindrical, lead is very thick, sealed plastic is black, while metals in foil and it has two types of film.
Again is Germany s leading ROE electrolytic capacitors, ROE electrolytic capacitors in both the earlier and SPRAGUE capacitance can be said main audio brand in Europe and America only two choices, especially in Europe, audio equipment ROE capacitors used a lot, all kinds of horizontal legislation capacitor can often be seen on the circuit board. Speaking SPRAGUE ROE capacitor capacitance and HI-END audio equipment in the representation can Krell machine to do the expansion as a model, Krell power amplifier is the main filter capacitor sprague capacitor, the input stage and driver stage power amplification Ken capacitor , we use the ROE. Krell s preamp and digital equipment also follow suit, especially the Krell s preamp and digital equipment in the ROE capacitors are used for a certain use a liver-colored plastic shell packaging, EK variety of materials. ROE in the past most of the capacitor is golden yellow skin packaging, circuit board mounted inside the chassis golden one is truly beautiful, it could not help but think of glowing golden luster sound quality and tone, with a ROE of Australia as the main filter capacitor capacitance in design and in particular when exposed out of the capacitor to increase the equipment itself, advanced texture. However, recent ROE capacitors, small value capacitor packaging has been changed to black, and it is really frustrating in terms of aesthetics on.

Europe is really beautifully capacitance of its products, please move to the attention of Philips capacitors. Philips capacitors in these two years the new advanced equipment in the factory of the exposure is higher and higher, and covered the the price of the equipment, such as ONIX, expensive equipment, such as Goldmund, vacuum tube machine of the best god JADIS and the large number of other brands, Philips capacitors can gradually see where the strength of the domestic long-established supplier of advanced components, such as the original sound that has been strongly advocated Shantou Philips capacitors benefits. Philips capacitors packaging is blue, but the color is slightly more than the capacitance SPRAGUE, it has many series, including a more advanced model of its cans have many hexagonal shaped notch in order to enhance the mechanical strength of the capacitor, of course, cost is This will be more expensive.

Audio equipment used in film capacitors, fame first, most famous, the most important red magic pill or elixir known German WIMA container. Has not yet appeared in the early years when the so-called tonic parts, WIMA was the only commercially available high-level buy stuff. Although the materials and technological advances and market demand, various brands have been more advanced thin-film capacitor was dazzling, but should WIMA is the most well-known brands. The most famous WIMA capacitors, is undoubtedly the number of PP quality MKP-10 capacitors.

In WIMA, the audio products also use a lot, great history, is the same for the German brand ERO capacitors. ERO capacitors most commonly seen is green, some are blue, and WIMA also assembled on a board, side by side, it is truly beautiful. ERO is the brand of film capacitors, and a high ROE is another brand of electrolytic capacitors, the two letters the same, but in a different order, the reader is not confused. The same for the German brand, but audio products using them too much capacitance is Siemens, the brand electrolytic capacitors and film capacitors are the name of HI-END in Germany are willing to adopt plant MBL, and performed extremely well, so the strength can not be be underestimated.
Philips is a big business group, its manufacturing of products is really countless, from the most popular people s livelihood and home appliances, to the most cutting-edge space technology, the broad-based course, the production of capacitors, is not missing. It is home of the capacitor, is to present the appearance of a faint blue water, recently often found in audio equipment.

Rifa is a Swedish brand of high capacitance, quality common to the PP capacitor is blue, the sound performance characteristics and specifications are very good, but the price is very expensive, likewise, so there are very few audio manufacturers use, but I just use that three The sound of this brand name factory, you can probably understand its strength lies. That the three do? Danish Gryphon, U.S. Mark Leivenson and Cello.

Wonder capacitor capacitance and Relcap are quite a few years off while the thunder of the high capacitance, Wonder Capacitors to Counterpoint machines use the most famous, Audio Research also uses it, the appearance of white cylinder, sealing glue is green; Relcap places the most famous use of Audio Research, the appearance of yellow oval cylindrical.

French Solen capacitors also became popular very quickly in recent years, its appearance was cylindrical, black skin, with both ends sealed plastic brick red and gray two. It is by far, the only mass production of large-capacity capacitor MKP (up to 200F) of the well-known manufacturers, so Solen capacitors are extensively used in high-level speaker crossover among the examples are well-known author of: Danish Dynaudio speakers, United States of Infinity speakers (including IRS-V alt column), France JM Lab speakers (the flagship of the ALCOR and UTOPIA is more unique in the horn back on the heart, showed off a transparent acrylic super special custom Solen capacitors, to show the material of the ordinary.) In addition, many well-known manufacturers in the crystal machine or tube used in both the electrical and mechanical way too many.

Capacitance to the history of MIT, is the youngest high capacitance, the listing date, maybe even three years not to, but since a launch, which can be "sensational martial arts, alarmed many religions" to describe, was once the HI-END Sound Circle the topic. One reason for its special structure, MIT is a complex capacitor capacitance (Multi cap), meaning that a capacitor is actually an internal capacitor in parallel by multiple composite, what advantage do it? Can once again reduce the capacitor s equivalent series resistance and internal equivalent series inductance, capacitance closer to MIT makes an ideal capacitor, so all the technical specifications and some features are also very good Lo! Of course, doing so is to pay a price, MIT capacitors expensive price, enough to make use of it to discourage manufacturers or individuals, which is its second notable place. In addition to its capacity in terms of the same size is relatively large, in particular about the density of circuit components on the real equipment, ease of application would be restricted. Its appearance is white oval cylindrical, lead is very thick, sealed plastic is black, while metals in foil and it has two types of film.

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Share DIY car audio capacitor with the Need

amplifier audio equipment in the field, a large aluminum electrolytic capacitors may account for almost most of the volume inside. Because each CV plot of aluminum electrolytic capacitors (C: capacitance, V: voltage) than other types of capacitors, their share of the smallest, and because they are cheap (for the capacitance per unit), it is a regular need to be used in large-capacity filter capacitors such as power, energy storage capacitors and other circuit.

Electrolytic capacitor is formed by electrolytic oxidation method and made into a film as a capacitor dielectric. The high-purity aluminum electrolytic capacitors is when the anode, and ethylene glycol, glycerol, boron, and ammonia, and so the composition of the paste as the electrolyte in the electrolyte in the electrolytic surface layer of the aluminum pole thin aluminum oxide film as a medium made into the capacitor. Electrolytic capacitor because the dielectric film can be very thin, so you can make a small capacity of the capacitor, the capacitor for the high-capacity main parts. But there are a lot of missing Ha electrolytic capacitors, for example, the frequency characteristics and temperature characteristics of poor wells, and large leakage current and dielectric loss, etc. In addition, when the polarity is reversed or both ends of the applied voltage exceeds the specification was, the security will be destroyed, the electrolyte will be gasification and burst (commonly known as the so-called breakdown)

There are many external environmental factors will lead to deterioration in performance electrolytic capacitor, such as temperature, humidity, pressure and vibration, electrical impact include the voltage, ripple current, and charge-discharge. Environmental factors in the temperature of the capacitor life the greatest impact, and make the smaller capacitance, loss increases. In addition, electrolytic capacitors because capacitor losses than the other (internal resistance) is large, the ripple current caused by the heat of life will be greatly affected. In addition, some pure Class A amplifier bias current required to cause high fever, high fever easily lead to serious all the relevant parts to shorten life, among which the power center of this electrolytic capacitor is staggering. Heat will cause rapid deterioration of performance electrolytic capacitor life and capacitance are reduced to only a fraction of the original, this way is tantamount to losing the role of filter capacitor, it is easy to machine failures will occur.

Then we introduce several circles in the sound quality electrolytic capacitors: First up is the famous SPRAGUE capacitance, in the expansion of HI-END advertised inside the machine, an occurrence rate of the Bay, covered the Krell, Mark Levinson, Cello, and other famous Factory machines, the power supply filter must come by it sits, in addition to countless number of multi-audio manufacturers also use SPRAGUE capacitors. SPRAGUE American system of high capacitance electrolytic capacitors, blue rubber packaging products to its excellent performance and stability, and long life. Electrolytic capacitors in the previous high number was small, when imported, SPRAGUE capacitance is DIY fans in search of scrap metal heap baby, ship-breaking second-hand second-hand parts monopoly provider, SPRAGUE capacitance is very sought-after hot item. Even from the scrap heap to SPRAGUE capacitance of the Xu are already quite old stuff, but it used up the same satisfactory performance, which also shows the life SPRAGUE capacitance is how long. SPRAGUE, however, the name may no longer easy to see the future, because it has been Japan s Nippon Chemi Con capacitors to the acquisition, but SPRAGUE all production lines may also maintain the original materials and practices, but the scale of production may vary, so the capacitor appearance other than skin color packaging and the original SPRAGUE capacitance remains the same, but the mark has been changed Nippon Chemi Con small shield rather than SPRAGUE. A careful reader can observe the name of newly manufactured machine, filter capacitor still seem no different with the previous, but in fact the word trade mark is not SPRAGUE but a small shield.

Amplifier audio equipment in the field, a large aluminum electrolytic capacitors may account for almost most of the volume inside. Because each CV plot of aluminum electrolytic capacitors (C: capacitance, V: voltage) than other types of capacitors, their share of the smallest, and because they are cheap (for the capacitance per unit), it is a regular need to be used in large-capacity filter capacitors such as power, energy storage capacitors and other circuit.

Electrolytic capacitor is formed by electrolytic oxidation method and made into a film as a capacitor dielectric. The high-purity aluminum electrolytic capacitors is when the anode, and ethylene glycol, glycerol, boron, and ammonia, and so the composition of the paste as the electrolyte in the electrolyte in the electrolytic surface layer of the aluminum pole thin aluminum oxide film as a medium made into the capacitor. Electrolytic capacitor because the dielectric film can be very thin, so you can make a small capacity of the capacitor, the capacitor for the high-capacity main parts. But there are a lot of missing Ha electrolytic capacitors, for example, the frequency characteristics and temperature characteristics of poor wells, and large leakage current and dielectric loss, etc. In addition, when the polarity is reversed or both ends of the applied voltage exceeds the specification was, the security will be destroyed, the electrolyte will be gasification and burst (commonly known as the so-called breakdown)

There are many external environmental factors will lead to deterioration in performance electrolytic capacitor, such as temperature, humidity, pressure and vibration, electrical impact include the voltage, ripple current, and charge-discharge. Environmental factors in the temperature of the capacitor life the greatest impact, and make the smaller capacitance, loss increases. In addition, electrolytic capacitors because capacitor losses than the other (internal resistance) is large, the ripple current caused by the heat of life will be greatly affected. In addition, some pure Class A amplifier bias current required to cause high fever, high fever easily lead to serious all the relevant parts to shorten life, among which the power center of this electrolytic capacitor is staggering. Heat will cause rapid deterioration of performance electrolytic capacitor life and capacitance are reduced to only a fraction of the original, this way is tantamount to losing the role of filter capacitor, it is easy to machine failures will occur.

Then we introduce several circles in the sound quality electrolytic capacitors: First up is the famous SPRAGUE capacitance, in the expansion of HI-END advertised inside the machine, an occurrence rate of the Bay, covered the Krell, Mark Levinson, Cello, and other famous Factory machines, the power supply filter must come by it sits, in addition to countless number of multi-audio manufacturers also use SPRAGUE capacitors. SPRAGUE American system of high capacitance electrolytic capacitors, blue rubber packaging products to its excellent performance and stability, and long life. Electrolytic capacitors in the previous high number was small, when imported, SPRAGUE capacitance is DIY fans in search of scrap metal heap baby, ship-breaking second-hand second-hand parts monopoly provider, SPRAGUE capacitance is very sought-after hot item. Even from the scrap heap to SPRAGUE capacitance of the Xu are already quite old stuff, but it used up the same satisfactory performance, which also shows the life SPRAGUE capacitance is how long. SPRAGUE, however, the name may no longer easy to see the future, because it has been Japan s Nippon Chemi Con capacitors to the acquisition, but SPRAGUE all production lines may also maintain the original materials and practices, but the scale of production may vary, so the capacitor appearance other than skin color packaging and the original SPRAGUE capacitance remains the same, but the mark has been changed Nippon Chemi Con small shield rather than SPRAGUE. A careful reader can observe the name of newly manufactured machine, filter capacitor still seem no different with the previous, but in fact the word trade mark is not SPRAGUE but a small shield.

Again is Germany s leading ROE electrolytic capacitors, ROE electrolytic capacitors in both the earlier and SPRAGUE capacitance can be said main audio brand in Europe and America only two choices, especially in Europe, audio equipment ROE capacitors used a lot, all kinds of horizontal legislation capacitor can often be seen on the circuit board. Speaking SPRAGUE ROE capacitor capacitance and HI-END audio equipment in the representation can Krell machine to do the expansion as a model, Krell power amplifier is the main filter capacitor sprague capacitor, the input stage and driver stage power amplification Ken capacitor , we use the ROE. Krell s preamp and digital equipment also follow suit, especially the Krell s preamp and digital equipment in the ROE capacitors are used for a certain use a liver-colored plastic shell packaging, EK variety of materials. ROE in the past most of the capacitor is golden yellow skin packaging, circuit board mounted inside the chassis golden one is truly beautiful, it could not help but think of glowing golden luster sound quality and tone, with a ROE of Australia as the main filter capacitor capacitance in design and in particular when exposed out of the capacitor to increase the equipment itself, advanced texture. However, recent ROE capacitors, small value capacitor packaging has been changed to black, and it is really frustrating in terms of aesthetics on.

Europe is really beautifully capacitance of its products, please move to the attention of Philips capacitors. Philips capacitors in these two years the new advanced equipment in the factory of the exposure is higher and higher, and covered the the price of the equipment, such as ONIX, expensive equipment, such as Goldmund, vacuum tube machine of the best god JADIS and the large number of other brands, Philips capacitors can gradually see where the strength of the domestic long-established supplier of advanced components, such as the original sound that has been strongly advocated Shantou Philips capacitors benefits. Philips capacitors packaging is blue, but the color is slightly more than the capacitance SPRAGUE, it has many series, including a more advanced model of its cans have many hexagonal shaped notch in order to enhance the mechanical strength of the capacitor, of course, cost is This will be more expensive.

Audio equipment used in film capacitors, fame first, most famous, the most important red magic pill or elixir known German WIMA container. Has not yet appeared in the early years when the so-called tonic parts, WIMA was the only commercially available high-level buy stuff. Although the materials and technological advances and market demand, various brands have been more advanced thin-film capacitor was dazzling, but should WIMA is the most well-known brands. The most famous WIMA capacitors, is undoubtedly the number of PP quality MKP-10 capacitors.

In WIMA, the audio products also use a lot, great history, is the same for the German brand ERO capacitors. ERO capacitors most commonly seen is green, some are blue, and WIMA also assembled on a board, side by side, it is truly beautiful. ERO is the brand of film capacitors, and a high ROE is another brand of electrolytic capacitors, the two letters the same, but in a different order, the reader is not confused. The same for the German brand, but audio products using them too much capacitance is Siemens, the brand electrolytic capacitors and film capacitors are the name of HI-END in Germany are willing to adopt plant MBL, and performed extremely well, so the strength can not be be underestimated.

Philips is a big business group, its manufacturing of products is really countless, from the most popular people s livelihood and home appliances, to the most cutting-edge space technology, the broad-based course, the production of capacitors, is not missing. It is home of the capacitor, is to present the appearance of a faint blue water, recently often found in audio equipment.

Rifa is a Swedish brand of high capacitance, quality common to the PP capacitor is blue, the sound performance characteristics and specifications are very good, but the price is very expensive, likewise, so there are very few audio manufacturers use, but I just use that three The sound of this brand name factory, you can probably understand its strength lies. That the three do? Danish Gryphon, U.S. Mark Leivenson and Cello.

Wonder capacitor capacitance and Relcap are quite a few years off while the thunder of the high capacitance, Wonder Capacitors to Counterpoint machines use the most famous, Audio Research also uses it, the appearance of white cylinder, sealing glue is green; Relcap places the most famous use of Audio Research, the appearance of yellow oval cylindrical.

French Solen capacitors also became popular very quickly in recent years, its appearance was cylindrical, black skin, with both ends sealed plastic brick red and gray two. It is by far, the only mass production of large-capacity capacitor MKP (up to 200F) of the well-known manufacturers, so Solen capacitors are extensively used in high-level speaker crossover among the examples are well-known author of: Danish Dynaudio speakers, United States of Infinity speakers (including IRS-V alt column), France JM Lab speakers (the flagship of the ALCOR and UTOPIA is more unique in the horn back on the heart, showed off a transparent acrylic super special custom Solen capacitors, to show the material of the ordinary.) In addition, many well-known manufacturers in the crystal machine or tube used in both the electrical and mechanical way too many.

Capacitance to the history of MIT, is the youngest high capacitance, the listing date, maybe even three years not to, but since a launch, which can be "sensational martial arts, alarmed many religions" to describe, was once the HI-END Sound Circle the topic. One reason for its special structure, MIT is a complex capacitor capacitance (Multi cap), meaning that a capacitor is actually an internal capacitor in parallel by multiple composite, what advantage do it? Can once again reduce the capacitor s equivalent series resistance and internal equivalent series inductance, capacitance closer to MIT makes an ideal capacitor, so all the technical specifications and some features are also very good Lo! Of course, doing so is to pay a price, MIT capacitors expensive price, enough to make use of it to discourage manufacturers or individuals, which is its second notable place. In addition to its capacity in terms of the same size is relatively large, in particular about the density of circuit components on the real equipment, ease of application would be restricted. Its appearance is white oval cylindrical, lead is very thick, sealed plastic is black, while metals in foil and it has two types of film.
Again is Germany s leading ROE electrolytic capacitors, ROE electrolytic capacitors in both the earlier and SPRAGUE capacitance can be said main audio brand in Europe and America only two choices, especially in Europe, audio equipment ROE capacitors used a lot, all kinds of horizontal legislation capacitor can often be seen on the circuit board. Speaking SPRAGUE ROE capacitor capacitance and HI-END audio equipment in the representation can Krell machine to do the expansion as a model, Krell power amplifier is the main filter capacitor sprague capacitor, the input stage and driver stage power amplification Ken capacitor , we use the ROE. Krell s preamp and digital equipment also follow suit, especially the Krell s preamp and digital equipment in the ROE capacitors are used for a certain use a liver-colored plastic shell packaging, EK variety of materials. ROE in the past most of the capacitor is golden yellow skin packaging, circuit board mounted inside the chassis golden one is truly beautiful, it could not help but think of glowing golden luster sound quality and tone, with a ROE of Australia as the main filter capacitor capacitance in design and in particular when exposed out of the capacitor to increase the equipment itself, advanced texture. However, recent ROE capacitors, small value capacitor packaging has been changed to black, and it is really frustrating in terms of aesthetics on.

Europe is really beautifully capacitance of its products, please move to the attention of Philips capacitors. Philips capacitors in these two years the new advanced equipment in the factory of the exposure is higher and higher, and covered the the price of the equipment, such as ONIX, expensive equipment, such as Goldmund, vacuum tube machine of the best god JADIS and the large number of other brands, Philips capacitors can gradually see where the strength of the domestic long-established supplier of advanced components, such as the original sound that has been strongly advocated Shantou Philips capacitors benefits. Philips capacitors packaging is blue, but the color is slightly more than the capacitance SPRAGUE, it has many series, including a more advanced model of its cans have many hexagonal shaped notch in order to enhance the mechanical strength of the capacitor, of course, cost is This will be more expensive.

Audio equipment used in film capacitors, fame first, most famous, the most important red magic pill or elixir known German WIMA container. Has not yet appeared in the early years when the so-called tonic parts, WIMA was the only commercially available high-level buy stuff. Although the materials and technological advances and market demand, various brands have been more advanced thin-film capacitor was dazzling, but should WIMA is the most well-known brands. The most famous WIMA capacitors, is undoubtedly the number of PP quality MKP-10 capacitors.

In WIMA, the audio products also use a lot, great history, is the same for the German brand ERO capacitors. ERO capacitors most commonly seen is green, some are blue, and WIMA also assembled on a board, side by side, it is truly beautiful. ERO is the brand of film capacitors, and a high ROE is another brand of electrolytic capacitors, the two letters the same, but in a different order, the reader is not confused. The same for the German brand, but audio products using them too much capacitance is Siemens, the brand electrolytic capacitors and film capacitors are the name of HI-END in Germany are willing to adopt plant MBL, and performed extremely well, so the strength can not be be underestimated.
Philips is a big business group, its manufacturing of products is really countless, from the most popular people s livelihood and home appliances, to the most cutting-edge space technology, the broad-based course, the production of capacitors, is not missing. It is home of the capacitor, is to present the appearance of a faint blue water, recently often found in audio equipment.

Rifa is a Swedish brand of high capacitance, quality common to the PP capacitor is blue, the sound performance characteristics and specifications are very good, but the price is very expensive, likewise, so there are very few audio manufacturers use, but I just use that three The sound of this brand name factory, you can probably understand its strength lies. That the three do? Danish Gryphon, U.S. Mark Leivenson and Cello.

Wonder capacitor capacitance and Relcap are quite a few years off while the thunder of the high capacitance, Wonder Capacitors to Counterpoint machines use the most famous, Audio Research also uses it, the appearance of white cylinder, sealing glue is green; Relcap places the most famous use of Audio Research, the appearance of yellow oval cylindrical.

French Solen capacitors also became popular very quickly in recent years, its appearance was cylindrical, black skin, with both ends sealed plastic brick red and gray two. It is by far, the only mass production of large-capacity capacitor MKP (up to 200F) of the well-known manufacturers, so Solen capacitors are extensively used in high-level speaker crossover among the examples are well-known author of: Danish Dynaudio speakers, United States of Infinity speakers (including IRS-V alt column), France JM Lab speakers (the flagship of the ALCOR and UTOPIA is more unique in the horn back on the heart, showed off a transparent acrylic super special custom Solen capacitors, to show the material of the ordinary.) In addition, many well-known manufacturers in the crystal machine or tube used in both the electrical and mechanical way too many.

Capacitance to the history of MIT, is the youngest high capacitance, the listing date, maybe even three years not to, but since a launch, which can be "sensational martial arts, alarmed many religions" to describe, was once the HI-END Sound Circle the topic. One reason for its special structure, MIT is a complex capacitor capacitance (Multi cap), meaning that a capacitor is actually an internal capacitor in parallel by multiple composite, what advantage do it? Can once again reduce the capacitor s equivalent series resistance and internal equivalent series inductance, capacitance closer to MIT makes an ideal capacitor, so all the technical specifications and some features are also very good Lo! Of course, doing so is to pay a price, MIT capacitors expensive price, enough to make use of it to discourage manufacturers or individuals, which is its second notable place. In addition to its capacity in terms of the same size is relatively large, in particular about the density of circuit components on the real equipment, ease of application would be restricted. Its appearance is white oval cylindrical, lead is very thick, sealed plastic is black, while metals in foil and it has two types of film.

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car audio system routine maintenance

Maintenance of the host:

Most vehicles today are equipped with CD player. Heat and humidity will directly harm the life of the laser head, so when the sun is

raging, in order to avoid direct sunlight, to resist what is best to use the sun visor.

As the summer the air is humid, it is likely to cause fogging on the CD, the CD drive if wet directly into the host will not keep pace

with the laser read head, and damp electrical components, laser head can also cause serious damage. Humidity and high temperature

electronic components and the laser head is the main culprit of aging.

After exposure to sunlight in the car should not be immediately after the volume of the sound, because the electronic system of

working conditions will change with temperature, and immediately turn up the volume will not only damage the speakers and other

electrical appliances, but also affect the host s life.

Another enemy is the laser head dust. Although the car stereo during the design process has considered the problem of dust, but

because of the domestic road conditions vary widely, dust issues remain important. In poor road conditions, the owner shall promptly

closed the window, usually also pay attention to cleaning the car.

Car CD disc slot-machine multi-use design. Just put the CD at the entrance, mechanical suction disc automatically. Some owners do

not understand this structure, often by hand into the disc, so that will not only damage the disc, but also serious damage to the

structure inside the tray.

speaker Maintenance:

If the doors and windows sealed lax should be replaced immediately, otherwise the summer will lead to leaking door speaker damage,

serious but also burned the host circuit.

Horn basin will occur at high temperatures subtle changes that will directly affect the sound quality, so after the beginning of summer

sound and feel different from the past as to the professional audio shop can do the appropriate debugging.

Maintenance of Disc:

Not on the dashboard disc. Hot summer, the sun s disc are prone to deformation under exposure. For the audio portion of the tape,

the same should be noted that to avoid the hot moisture. High temperature deformation will tape, cassette into the host when the

phenomenon. If the tape directory sign above reveal, it is better simply to tear up, otherwise it will result in failure of the tape could

not retreat. Do not listen to in a long time or is turned off, it is best to tape out, because the shutdown will temporarily suppress the

tape pulley pressure, a long time will lead to pressure pulley deformation. Not long after the disc will be in the dust and scratches in

the surface dust wipe the disc with audio tracks along the perpendicular to the direction of the wipe. Be sure to use the host

selection of good quality genuine disc. Because there is often a pirated disc surface is uneven or round plate hole is not the case, the

playback of these risks can lead to the laser head to skip the points failure, directly undermine the life of the laser head.

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new cars have to change the sound thin car special resolution

audio and video conversion professionals have pointed out, in fact, choose “car only” should also be careful to distinguish, in order to

find the best car audio upgrade program.

At the end and set off a car boom, which ushered in a more economic car outbreak. As profit gradually thinned, economical car

manufacturers tend to become more conscious of its original car audio equipment for strict cost control, which also makes them more

economical car owners tend to choose a new audio upgrade. Recently, reporters from the city to understand some of the professional

conversion shop, choose economy cars increased significantly the number of audio-visual upgrades, including all kinds of “free

disassembly”, “car only” type of method is more adapted to meet the majority of owners do not want major changes in the intention.

In this regard, audio and video conversion professionals have pointed out, in fact, choose “car only” should also be careful to

distinguish, in order to find the best car audio upgrade program.

Be careful, “avoid disassembly” fabled

To mention the end of the car, some car owners not satisfied with the original car stereo, so, wanted in the past years of the original

car audio and video equipment some upgrades. In order to meet market demand, some modified shop also launched a “free

disassembly” of the modified new program, such as disassembly to provide some free car DVD products, the conversion process for

owners fear will destroy the original car design problem, achieve a “free disassembly” to secure modification of the effect. Sound, it

seems very attractive, but demand has modified cautious owners.

All along, the car stereo, CD conversion is to “remove modified” approach, that is to be the basis of the original design of the car up

re-wiring, design, interior changes. As car manufacturers in the production of vehicles, based on cost, fuel consumption, price, and

many other considerations, combined with safe driving data such as speed, speed and other factors, so in many parts of the design

layout has a fixed program, and ” demolition modified “in the process will undoubtedly affect these original designs, often have two

problems: First, the conversion process to give the” destructive “, due to the re-design, bound to have a car the original lines, interior,

cause some flawed parts; There is also modified “adaptive”, modified car parts as reasons for change, or there may be similar to the

normal operation of the power mismatches, circuit overloading and other adverse reactions, thereby affecting traffic security.

Sounds like “free disassembly” seems a lot of advantages, but in actual operation, but there is a big limitation, which also makes a lot of

converted stores in the conversion process is still difficult to avoid disassembly. Sounds Square, audio and video conversion studio head

Ningwen Jiang said that the free disassembly and installation of sound is not demolished, but in the actual conversion process, a vehicle

is definitely needed to install some equipment like dismantling some of the panel, there is no full sense of the free disassembly,

disassembly of degree only. Modified by individual stores for “free disassembly” slogan took the opportunity to put forward a higher

conversion costs, vehicle owners should be careful not to be misled by their one concept, otherwise, the same conversion process is

more 花了冤枉钱.

Special car only for the host part of the

There are car owners think that the current special car modified car audio equipment, including hosts, speakers, amplifiers and other

equipment fully. But in fact, the current car-specific audio-visual equipment, only for the host part of the terms. Professional car audio

shop can be modified according to the needs of owners, the installation consistent with the style of the original car DVD navigation

and dedicated panel, but the amplifier and the sound can only be another purchase.

Among the many suitable for conversion of DVD navigation products, as more emphasis on the design of domestic brands, especially

the brand of panel models, has reached great accuracy with the original car-style effects, but unfortunately the picture, sound quality

has been no implementation a breakthrough. The import of the host is still focused on the actual quality, but in terms of appearance,

for most non-market selling car models are still unable to provide specific products.

Therefore, the owners are two camps in the choice of this product, from its own budget and the effect of the modification to

measure, for their respective advantages and disadvantages to the appropriate purchase.

Consumer tips: professional car audio shop should choose modified

Owners of large-scale modification proposed modification to select those stores, especially those who can provide various models of car

modification shop dedicated host. Currently the local car audio shop although more and more, but some only comprehensive

management, audio and video is part of, usually made car brand car owners dedicated host, they can not provide cash, basically

temporary transfer goods from other sources over , but also for those non-market selling cars even more powerless.

Car-specific products need to complete the variety of course, but modification process is the strength of the test conversion shop.

Some of the host part of the original car modification shop removed, the replacement of the original car for a dedicated host, but the

details related to the electrical installation, once the operation is unskilled, easily a security risk for the original car.

Prices, we all know, to mention a new car, if convenience stores to install directly to 4S, generally the same grade of product, more

expensive than the market more than 50%. Now that a wide variety of products, the market is extremely competitive, the price of

many brand-name products have been significantly reduced, the general price 3000-4000 yuan selection of products, you can reach

better results.

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Introduction to knowledge of car audio enthusiasts

Fever of audio speakers, is the modified HI-FI. Is a favorite of audiophiles.

speaker, car audio host is the most important part, just like the human brain, what kind of sound to be issued, may be controlled by

the brain. The speaker is like the human voice, the sound is sweet, it is necessary to see how the voice.

Speaker known speaker, its role is to convert the audio signals to acoustic signals radiated around the air medium. Car speaker cone

design with the most common, which is installed in the vehicle because space is limited in the case, tapered design can be expanded

as much as possible the effective area of ​​the diaphragm, and diaphragm determines the effective area of ​​the low-frequency response

speaker . In other words, tapered design can not install bass case, bass.

speakers can be divided into full-frequency, low frequency, medium frequency and high frequency of four kinds. Form of energy

conversion can also be divided into electrical, electromagnetic, piezoelectric, electrostatic and tablet, electric vehicle to the main

speaker.

That is coaxial speakers full-range speakers, it s woofer and tweeter is designed in the same center line, the outside is low, the inside

is high, but the vocal point in the same physical location. This design can eliminate the high and low frequency units due to the

frequency range of different sounds caused by drift, but because of the high, the bass is emitted from a point, so the larger the

distortion sound.

Divided into 2-way loudspeaker frequency and divide by 3, 2 divided by the tweeter and woofer components, divide by 3 is coupled

with the midrange unit. Because each unit is responsible for different frequencies, broaden the frequency range, so as to solve the

problem of sound distortion. However, because daily life, we hear the sound basically sent from one point, while the frequency

emitted by the speaker frequency of each unit, the installation of the physical location are different. In this way, there will be voices

drift phenomenon. In addition, the high, although the bass unit is responsible for different frequencies, but it is bound to the

existence of a critical point, so in a different position, given the same frequency, will produce acoustic interference.

To solve these difficulties, we must use the role of divider. Crossover As the name suggests, is to separate the different frequencies,

and sent to a different speaker unit. Of course, its function is not only this, it is also based on the characteristics of the speaker to

make proper adjustments in order to reduce distortion and interference.

Glossary

Nominal Impedance: speaker at a particular frequency when measured at the input impedance value, it is the speaker sound system

with other parts of the important parameters match. If the data and power amplifier with a nominal impedance, there will be sound

distortion.

Sensitivity (SPL): When the speakers with 1W power of noise signal in the axial direction of the sound pressure level measured at 1m,

which is reflected in the size of the speaker sound performance skills. When the optional speaker, to try to make both sides of the

consistent values ​​(controlled within ± 1 dB), or there will be very clear sense of focus.

Pre-amplifier signal is to weak to do the initial processing of amplified sound (including the removal of interference, signal optimization,

integration of information), re-amplified power amp his power output to the terminal (the speaker or speakers). Pre-amplifier

amplification voltage, and signal modification, such as balance adjustments.

First class is usually voltage amplifier, the output of the CD and other audio signal amplification of small amplitude. Pre-amplifier with

adjustable volume tone (not all have pre-pitch function) and selection of signal functions. And also a set of equipment in the greatest

impact on the sound part.

Is the current level after amplification, is used to promote the speaker.

Rather less than 470 mV output] [pre-amplifier, the output is greater than 470 mV [PA], before and after the combined amplifier

integrated amplifier called []. Is the current level after amplification, is used to promote the speaker.

Integrated Amplifier is the front-end circuit and the post-stage circuit mounted on a chassis or the front-end circuit and made a post-

stage circuit board.

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listen to sounds of car audio use and maintenance tips

Car music has become an integral part of automotive life, when the high-quality CD surround sound, beat notes pouring out of the

drive will immediately feel comfortable together. But most owners only know to enjoy the wonderful music brings pleasure, but do not

know how to protect its “voice”, so Amu bring you the use of sound maintenance techniques.

Refused to “decadent music”: audio using the four fear:

As we all know, there are four electrical appliances fear: a fear of damp, second, fear of dust, three fears severe shock, the four

mutations in fear of amplitude. car audio, too, as long as people can understand what they do not like, it is easy to protect them

anymore.

First, the fear of wet

People always love a clean car interior will be cleaned, should be noted that, when people clean the car interior, you should try not to

spray in the direction toward the sound of water, liquid detergent like substance. Dust on the host audio, you can wring a towel to

wipe dry. Also, car interior cleaning, the best window for some time, so most of the water evaporates and then shut down the car

window, you know, electronic products, the biggest killer of all parts of the controller is damp.

Second, the fear of dust

Dust on the car stereo s injury is very common, for example, advance and retreat disc problems, its reading is not difficult or even its

reading, and radio interference effects, are likely to be caused by dust violations. So when your car when driving in the dirt road, try

not to open the window, to avoid the large influx of dust from the vehicle interior, and, it is best to adjust the air circulation within

the outer loop, to avoid dust on the sound against.

Third, the fear of severe shock

Although the general process of moving, car audio jitter will not cause severe vibration host (unless out of the car accident), but

sometimes for some reason, people need to be removed to sound, this time we should pay attention, do not hard shaking or tapping

sound. Suffered severe shock because, after some internal parts may sound loose or damaged, causing serious problems. In general,

even for the maintenance of sound waiting for the host, should take a light-light approach.

Fourth, the fear of mutation amplitude

To avoid the use of sound which suddenly put maximum volume, so easy to make a bad speaker coil, the amplifier will be affected, will

increase the amplitude of a sudden burning power amplifier.

Maintenance of “rhythmic”: audio also needs routine maintenance.

Car audio and other components as needed routine maintenance, do not go unchallenged, car audio routine maintenance include the

following.

Often with a small swab moist:

Sound pressure in the cassette machine pulley and CD player heads are easy to accumulate dust and dirt. CD player is the most

important parts of the laser head, because the laser is more expensive wearing parts and should focus on conservation. Although

some car audio in the design process are considered a dust problem, but protective measures are necessary, you can often use a small

swab moist cassette, cassette and CD player and sound system disc slot panel. The correct approach is to use a damp cloth to gently

suck the dust down. As for the buttons and knobs to clean up, you can again use a cotton swab.

With the clean-up tools clean the tape and CD:

In addition to maintaining the cleanliness of the host audio, tape and CD but also to ensure cleanliness. Dirt on the tape and CD player

will not only affect the sound, will sound even cause damage. CD player laser head at high speeds, if you encounter dust, will deviate

from the original laser laser track, resulting in sound distortion, and laser damage. It is understood that the cleaning tape and CD audio

-visual tools in most stores you can buy.

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Fit a small FIT loud sound pressure measurement conversion

Test vehicle: hatchback fit

Sound System: The United States Hawker
System Configuration

audio: Alpine 9881

Before the sound field: Hawker MS 400.4 push KICKER SS30 tenor treble + Hawker MSQ6.2

After the sound field: Hawker MS 400.4 push MSQ6.2 suit

Bass System: Hawker M2000.1 push two ten-inch ME10Y

Pre-treatment: two EQ processors Hawker MKQ 7S

European and American brand car audio car audio brands in sound orientation are very different, European brands in the UK sound

typical, heavier sound, focusing on the real natural sound, detail. American voice to focus on the impact of sound, high dynamic low-

frequency performance, which KICKER is one of its typical representative. Fit like a small hatchback car, the sound pressure on the

performance of a more general or larger sedan hatchback will have a better performance of the sound pressure, because low-

frequency part of the small space will sound better multiplier effect, Therefore, using the 10-inch speaker but also as better

performance.

System 4

ALPINE audio part is the 2007-model 9881, it 1Bit digital-analog conversion, eliminating the number of ordinary CD digital processing of

analog distortion. Host signal out, before the installation of the amplifier, two EQ equalizer MKQ 7S, it can not only be adjusted

throughout the spectrum, the host can also be re-amplified output signal, so that after the power amp is easy to reach full power

output . Before the sound field production rather special, in order to achieve better performance treble, treble using the SS series of

treble KICKER SS30, and with M400.4 active crossover. After the sound field to push the MQ 6.2 with M400.4 sets. Bass 12-inch

system is not common, but with `10-inch ultra-low M400.4, then lower the larger box to dive.

4 modified car ride

Modified before the sound field focused on the instrument panel. Decorative panels dealing with carbon fiber-style appearance, and

installation of a host bit EQ, modified door not modified in appearance marks. However, the handling of door knocking sound from the

point of view there is significant noise damping treatment. Treble mold in the A column, and then re-coated leather. The installation

angle is the use of treble cross auxiliary radio listening position, the installation position of the A-pillar than the average conversion is

higher, the installation angle of a little treble slightly downward-sloping, and good treble can be slightly adjusted in the installation

position angle.

Modified 3 trunk

Open the back door you can see the trunk full of equipment, sound pressure is the most typical vehicle modifications. Large box, get

a better bass reduction. In audio technology, even the best bass speaker, cabinet making if there are problems, it also can not play

the best effect. Excellent overall design, but the work is not fine. In security, such as replacement insurance is very convenient, in

more creative lighting on the entire surface with a special leather treatment, making the car great personality.

Noise damping 3.5

SPL car to have a good bass performance, vibration is one of the keys. FIT has a Japanese car plate car trunk just rely on modeling to

increase, while the steel and thin design that does not work in audio processing, this is because a full range of sound pressure is the

force, which is more important material requirements. In the trunk part, because of the bass work, demanding better damping effect,

this FIT car body in the car better performance, but the back door of the deal to be desired.

Sound 4

The world s best music is obviously very suitable for this car, dual 10-inch bass performance will be better than the 12-inch low-

frequency part of the intensity of feeling and transient response. This new category slow roll music like many car owners in the car

listening to music, pleasant music out of the car-specific records in the performance of this car has just the right wild. Listening to

classical music, and attention to detail the performance of the music style of the people in the car listening to this, the body will feel a

sense of all the instruments will be even greater.

3.5 sound

SS30 alt performance is in line with the world s best music style, high dynamic response of the alt demanding. The details in the

sound, the whole system is obviously of great importance to acting freely sharp low-frequency performance and dynamic sense of

calm, instead of a general system in the medium volume to listen to nice, the volume increase will have serious sound distortion and

smearing .

Sound field 4

Overall, more forward sound field, due to the location of installation of a high treble, the sound field higher altitude, the sound field is

relatively open Yang, but relying on the overall sound field listening position slightly. Hatchback forward more easily adjust the bass,

while the use of electronic EQ, bass, and before the interface is easy to do better the sound field.

Dynamic 4.5

KICKER and the United States are the characteristics of Hawker s voice louder, the better to listen to, this car s dynamic performance

in the “City of Sadness,” a collection of Japanese drums, percussion sounds, the whole car has a feeling of shock with the drum skin.

In jazz performance, high dynamic performance of the trombone and French horn, a little treble without distortion, visible with the skill

system.

Balance of 3.5

Overall sound pressure balance in the car, there were saddle-shaped trend that bass and treble a few decibels higher than the tenor.

This is the amount of bass performance is not very obvious, and in the case of large volume, there is a clear trend.

Overall Comments 4

SPL car modification, in addition to the mix of equipment, materials and modifications in the process requires very high sound pressure

game is always some challenge to the limited equipment and space, challenging the limits of sound pressure. In practical applications, in

fact, modified cars loud pressure sought after by many people, especially young people love. Do not be surprised at this car s owner is

a girl, in the pursuit of individual modification, as long as the conversion is good, will have its market.

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