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Tag Archives: car horn
Car horn
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car coaxial speaker – China Manufacturer
Thank you for inquiry my car coaxial speaker, Tel: +86.573.8468.1673, E-mail: futuresound@mailzj.cn
http://www.chinafuturesound.com/coaxial-speaker/
car horn
In accordance with professional car horn, front door speaker according to the good, the back of the speakers can be installed in general on the line, because the sound is focused on the front sound field, behind only an auxiliary, because the sound from the front to the back pass
What is a line array loudspeaker system
What is a line array loudspeaker system
Simply, line array loudspeaker system can be seen as a large, full-range speakers. It is with the line array (LineArray) basic theory, under certain conditions, to be approximate and develop a speaker system. Should be noted that,
can not simply \"line array\" is equivalent to the actual line array loudspeaker system.
Line array are arranged by a group of Shu straight line, closely spaced radiating element form. The radiating element of sound radiation should have the same amplitude and phase.
Basic conditions to form a line array
Line arrays to achieve an approximation of the ideal \"line source\" or \"continuous ribbon source,\" The basic point is:
Of ① array of acoustic radiation plane-shaped wavefront to a phase with the work;
The ② array of acoustic radiation acoustic center spacing should be less than half the wavelength of maximum radiation frequency.
From the theory of line array line array system is only IF the line array
As the frequency increases (ie, wavelength decreases) the need to emitters smaller, closer spacing to keep the point system (ie, must meet the spacing between the centers of the \"sound should be less than half of the wavelength of
maximum radiation frequency \"conditions). Thus, the practical way, high-frequency part of the high directivity with a waveguide horn drive to match the woofer. Such a \"combination\" can keep constant in the wide frequency
range and narrow vertical directivity.
car audio wiring
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car audio – China Manufacturer
Thank you for inquiry my car audio, Tel: +86.573.8468.1673, E-mail: futuresound@mailzj.cn
http://www.chinafuturesound.com/
(1) the smaller the car audio wire resistance, the less power consumption on the wire, the higher the efficiency of the system. Even if the wire is very thick, due to the speaker itself, the reason will lose some power, without making the whole system efficiency of 100%. (2) the smaller the resistance of the wire, the greater the damping coefficient; damping the greater, the greater the redundancy vibration of the speaker. (3) the greater the cross-sectional area of ??the wire (thicker), the smaller the resistance, the greater the tolerance of the current value of the line, the greater the output power is allowed. (4) the power of insurance choice. The fuse box of the main power line, the more close to the car battery as possible, the insurance value of size according to the following formula to be determined: the insurance value = (system amplifier the total amount of fixed average power and × 2) / vehicle power supply voltage
The wiring of the audio signal lines
(1) the audio signal line connector with insulating tape wrapped tight in order to ensure insulation, joints and body contact, can produce noise. (2) keep the audio signal lines as short as possible. Audio signal lines are longer, more susceptible to noise pick up. Note: If you can not shorten the length of the audio signal line, part of the long folded rather than rolled. (3) audio signal line wiring, trip computer unit and the amplifier\\ s power cord to leave at least 20cm. If the wiring is too close, the audio signal line will pick up to the sensor noise. The best audio signal lines and power lines separate cloth in the driver\\ s seat and the deputy behind the wheel on both sides. Note that when near power lines, micro-computer unit wiring, audio signal lines must leave them more than 20cm, if the audio signal lines and power lines cross each other, we recommend that the best intersect to 90 °.
Edit this paragraph, the wiring of the power cord
(1) the selection of the current capacity value of the power cord should be equal to or greater than the amplifier phase insurance value. If less than the standard wire power cord will produce AC noise and severe broken ring sound. (2) when separated with a power cord to the amplifier power supply from separate points to the length and structure of the amplifier wiring should be the same. When the power cord bridge between the various amplifier potential difference, potential difference will cause the AC noise, which severely damaged the sound quality. When the host directly from the power supply will reduce noise, improve sound quality. (3) complete removal of the dirt of the power supply (battery) connector and connector tighten. If the power connector is dirty or not tighten, joints, contact resistance. The contact resistance will lead to the AC noise, which severely damaged the sound quality. To clear the junction of the dirt with abrasive paper and fine fell. (4) when the wiring in the vehicle power system, should be avoided alignment in the vicinity of the generator and ignition, generator noise and ignition noise radiation into the power cord. Replace the factory-installed spark plugs and spark plug cable into a high performance type, ignition spark stronger, then more susceptible to ignition noise. (5) the principles in the car body cloth, power cord and fabric audio cable.
Edit this paragraph grounded
(1) with a sandpaper body take place at the paint removed, the ground wire is fixed tight. If the residual paint in between the body and the ground will make the ground point contact resistance. And the previously mentioned dirty color similar to the power connector, the contact resistance will lead to the generation of AC noise, which severely damaged the sound quality. (2) is concentrated in a sound system in each module grounding. If they focus on a ground potential difference exists between the various components of the audio lead to the generation of noise. Note: The host and the amplifier should be grounded. (3) When the system current consumption, the battery ground must be firm. Improve the performance of the power supply ground, with the large diameter of the wire between the power and ground wiring, such as stranded wire. Doing so can strengthen the connection, effectively suppress noise and enhance sound quality. (4) Do not close to the trip computer wiring. Keep in mind that the host take place near the ground or a fixed point of the trip computer, a trip computer noise.
car stereo equalizer in the role of
1, the sound system used in the purpose of graphic equalizer
Already has a host – Amplifier – speaker these basic sound system, in order to improve the sound quality of this system and regulation
of the more detailed, more complete the music player, will join the equalizer in the sound system.
Sound system used in graphic equalizer (Graphic Equalizer) audio can be improved in some bands or attenuation, it is intended to
correct room acoustics and speaker inside the amplitude-frequency characteristics of the defects, or to polish the sound processing,
you can locate the car in and around the sound field to make adjustments to suit personal preferences and enhance the sense of the
scene. Frequency equalization (Frequency-response equalization, also known as balanced Equalization or correction balanced Corrective
equalization) circuit, which is in the sound system in order to get a flat overall frequency response, for some correction or adjustment
of the signal transmission frequency characteristics of a network circuit, it can be taken to distinguish between the various frequency
method, resulting in a flat overall frequency response. Such as the Kenwood DPX-8020MD with its own internal 11-band graphic
equalizer circuit, is a typical example, as well as host internal amplification circuit, also has a different frequency equalization.
2, the sound system to use the graphic equalizer in either
Graphic Equalizer has been all the rage, a sound combination of essential parts, but it disappeared a few years ago, almost nobody
cares. There are many reasons, first of all most of the goods of poor quality of the graphic equalizer on heavy burst will produce
discernible additional distortion and noise, reducing the overall sound quality. Second, if used improperly, the balance often makes
heavy burst damage, resulting in heavy burst frequency over the muddy, dull and lacking mid and high frequency of excessive and
harsh. The pursuit of HiFi sound quality for the lovers, are intolerable, and now with the popularity of audio and knowledge increase,
the sound quality has very good ability to identify, graphic equalizer fans will gradually be applied to Hi-Fi arena. As the graphic equalizer
is given in the appearance of a beautiful feeling, like young people to pursue the goal, pay attention to the most beautiful screen,
choose the host with a graphic equalizer. Now the host is generally 2DIN with graphic equalizer. However, for fans of Hi-Fi is not
recommended to use this host, because the host has done a modification within the source, so the listener is not the pursuit of
quality, as a general appreciation is possible.
3, how to use the equalizer for sound compensation
In recent years the host of many brands such as: SONY, KENWOOD, VDOdayton, to listen to in order to obtain a sense of comfort, to
set some special effects to produce a frequency compensation deal with EQ, a variety of preset tuning mode, suitable for playing
different songs to create a sound effect, providing the perfect sound environment for non-professionals do not make timely sound
field adjustment disorder, just press the button you can reach a preset preset effects, such as ROCK (Rock), VOCAL (vocal), CLUB
(club), NEW AGE (avant-garde), POP (pop), JAZZ (Jazz), CLASSIC (Classical music), etc. Frequency of the sound source for the
principle of compensation is not affecting the loudness of the melody played, even if the volume is large, we can not make people feel
uncomfortable. According to the most perfect combination of personal preferences to the effective environment.
technology is a modified car stereo shop in the root development
What is a good sound system? What is a good sound? How to create a good sound?
This may be modified our car audio shop and committed to the pursuit of the problem.
We know that self-produced car audio equipment, has its own properties, for example, which products are good people to restore
the sound, very bright or high-frequency, or the interpretation of a very large dynamic place, and so on. But is not that we chose
these products, install them in each conversion shop sound system is the same sound? Not. From the equipment with, to modify the
treatment process to debug the system sounds are different due to different modified, the system sounds good or bad, all in the
“technical” should be on.
We look at the national car audio conversion program is operating very good store, Beijing Metro Ziang, car treasure Shanghai,
Guangzhou brothers first song, is the city of Shenzhen, Beijing fertile Fulin, Kunming music front, Thai Yuan in Quanzhou, Guangzhou
Sounds Square, Guangzhou car elements, sound, etc., Dongguan Road, which is not a focus on professional and technically
competent. We all know the industry well-known shop is the city converted “Cross tactic” in there “technology” is the word.
If a converted shop conversion technology is not good, it is difficult to customer satisfaction, customer dissatisfaction, only once did it
twice; a modified test if the modification skilled shop, or from existing customers in selected equipment , the customer needed to
change the sound, customer satisfaction, this will attract more customers, forming a virtuous circle.
layout car audio conversion tips
In the audio conversion, the amplifier, speakers, like the conversion is very important, and audio equipment is installed, the layout of
the sound will have a significant impact.
■ soundproof door
In the car listening to music and music at home, there is a big difference, that is, fast-moving car in order to achieve good results,
which for a higher sound equipment requirements, and high-speed driving, wind , tire noise and mechanical noise
Would interfere with sound audio system.
Hence the need to retrofit vehicles. Generally choose to do the door system shock and noise. Modified in a number of car door noise
shops, car audio shop can do.
Generally use a soft sponge foam to seal the door cavity, the best system of shock with a professional board, but the system board
cost shock is much higher than the foam sponge.
■ There are particular about the speaker position
Car audio conversion, the high, medium, have separate bass speaker if installed together will interfere with each other. As one owner
modified his Audi A6 in sound when loudspeakers installed in the A-pillar on both sides, tenor horn installed in the front door in the
middle front position, while the bass speakers installed in the front door at the bottom. According to the modified technicians
introduced, it is a good alt link between the formation of an accurate sound field positioning. Moreover, it can be modified at any time
split down.
■ Speaker clever layout
Many owners choose to speakers when converted into hiding, using built-in, it saves space, is a very practical choice. You can also
choose the irregular shape of the speaker, so you can maximize use of space, and the irregular shape will help to eliminate the
interference between sound waves.
Tagged car horn, pa loudspeaker, spl speaker
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the importance of bass enthusiasts the classroom
I believe that many riders in the use of the original car stereo system to listen to music, the music always feel weak, it seems that
something was lacking, it is the lack of full, solid bass gives the result of feeling. Now a lot of riders had been a misunderstanding on
the bass that sounds great, have felt like; some people think that installing the subwoofer in order to listen to “disco, rock and roll”,
do not listen to other music subwoofer.
Fast moving car, tire and road surface friction of the tire noise, engine noise operation, the body and the air collision of wind noise,
etc., often make the bass to be weakened. Install the appropriate high-performance subwoofer to enhance the bass region, you can
make music full, people better listen. Subwoofer effect summarized in the following three points:
One is to make music more passionate and shocking.
The second is to create a truly contagious music atmosphere.
The third is “masking” the process of moving cars in a variety of low-frequency noise.
Audio upgrade in the most elementary stage, you can choose an area slightly larger diaphragm 6 × 9-inch speaker, bass is better than
the 6.5-inch speaker, to add the appropriate low-frequency effects. However, 6 * 9-inch speaker, said although the technical
parameters, dive deeper bass, but the low sound attenuation area is also very serious, so the performance of music in this band is not
prominent. Demanding only with a special subwoofer to compensate for this band, the bass extension, in order to make music to keep
the natural tonal balance, it sounds rich depth, breadth, fullness and clear and pure. The size of the subwoofer more than 8 inches,
10 inches, 12 inches, 15 inch, 18 inch.
To select the subwoofer according to music preferences. If you value sound quality of music, you can choose low-sealed speaker. It
features easy to control the sound, the sound quality is better, but the efficiency is relatively low. If you like to listen to “blow up”,
you can choose a wind hole of the box, which is characterized by large volume, make a sound pressure for the game, more efficient,
but the low speaker volume size requirements more stringent, the diameter and length of the duct there is a certain requirements.
audio conversion modified car stereo teach you three strategies to save money
First, the power output. That is, a sound system, the host or the output power amplifier must be large, because of their greater
power output, it showed that they can control the audio greater linear range, then the stronger the ability to drive the speakers.
Replacement of a cost-effective high-power amplifier can immediately make your car audio performance very different.
Second, the price performance balance. Car audio system is a large system or whether the original car system, how to skillfully mix is
??the key. Well with the equipment itself will often receive higher than 20% -30% or even more than doubled the effect. So select
the equipment, be sure to according to the brand, performance to match. So that each component can play the best effect is to
change the sound effect out of the only way to save money.
Third, the gradual upgrade. Change the sound to consider the upgrade, at immediate cheap, nose, speakers are “will” come. At that
time appears to be saving money, may want to improve the future once only found things almost before the installation of waste pile.
So, before conversion should develop a reasonable budget, and within budget discussions with professionals configured for the future
upgrade certain amount of leeway.
luxury cars made several original sound evaluation report
Passat: strong and powerful bass
Passat of the solid body structure, very thick door and double door design, the effect of noise makes the whole car is very good. To
install speakers in the doors, double doors into the space between the actual resonance speaker box out of the bass would be more
strong and powerful. Meanwhile, as a typical European car, the Passat in the original high-frequency sound for a good deal, it is
suitable for listening to classical, ordinary voice and softer, lyrical music, but not good at expressing similar disco or heavy metal.
Host host with European-style design, knobs and buttons are relatively small, it seems very delicate. The function keys and intuitive
design, the operation is relatively simple, such as the 1-6 number keys, representing 1-6 discs, we can say at a glance. In addition, the
knob design is also more suitable for driving operation.
Speakers take into account the larger Passat interior space, plus the door is a double structure, so the factory installed in the front
door split a pair of two-way speaker kit: 1 inch core 15 is installed in the tweeter behind the rearview mirror door triangle position, 6-
inch bass speaker is mounted in the door inside. Installation is also a back door way split of the two speaker kit, but one of a pair of
bass speakers are not installed in accordance with traditional baffle below the rear windshield. The reason is that the traditional
approach, if the sound is too large, rear passengers will be the formation of a great noise, but the speakers installed in the rear
position, are more likely to listen to the music of various musical instruments and the level of positioning , and we listen to this concert,
used to the sound coming from the front as simple as that.
Rated sound system: 3 points; listening space: 1; body structure: 2 points; score: 6 points.
POLO: to make up for lack of space
POLO s body is short, relatively small listening room, but manufacturers can focus on the actual situation in the horn installation position
to do some special processing to make up for lack of space. Lo POLO car audio system that does not listen to some of the low-
frequency, normal pop songs is still very good.
Passat of the host and the host and there is not much difference.
Speakers by listening to space constraints, so the original POLO car stereo, then the door is not installed speakers, but still reserved for
the speaker position, providing a future upgrade of the sound space.
Front door is a pair of two-way split speaker kit. The location of loudspeakers installed in the door is not at, but to install it on the
instrument panel with the A-pillar is connected. Why? Mr. Lu said, as if the loudspeakers installed in the Passat car, as if at the door,
space for a small body, because passengers ears are too close to the speaker, listening to the sound from there will be a pressure.
The POLO car dashboard has been extended forward, the tweeter is located in the instrument panel junction with the A-pillars, this
treatment would be more natural sound.
But Mr. Lo also mentioned a little regret, that the factory-installed loudspeakers and did not try to do when the angle of adjustment is
done because there is no artificial sound field positioning, put out the sound more casual, there is no point of view. If the angle of the
tweeter to make some adjustments, then, like the left A-pillar of the speaker towards the co-pilot the position of the B-pillar, on the
contrary the right A-pillar of the speaker toward the location of B-pillar, the driving position, this way, the sound will come out in the
instrument sets the position of the middle facing the host, to create the best listening position, then all the better.
Rated sound system: 1.5 points; listening space: 0.5 points; body structure: 2 points; score: 4 points.
Audi A6: host unique
Audi single-layer structure of the door, making the sound performance of the low-frequency sound will be lacking, but the factory
speakers by adding low enough to make up, making the overall sound quality is good. IF people for playing the sound of jazz, classical,
etc., but not for metal rock music.
Audi A6 host host host than the general standard to be wider, the volume control knob design in the middle of the host, more
humane. A special place, the host is hidden, and cherry wood trim also covers the outside, use, cherry wood trim auto away, exposing
the host, so that one car interior look more upscale, the other hand, the host is not easy to stick ash, can be kept clean.
Speakers front and back doors installed is a pair of two-way split speaker kit. Audi A6 and Passat models of different mass, it is a single
door structure, the speaker can only be installed in the decorative board, because the air inside the scurrying, it would be more space
to play bass, plus the body is relatively large, bass not ideal. But the designers were clever cover, installed in the location box
underwent a low-power amplifier with speaker, bass less than the original car design remedial back, making the low-frequency full,
layered better overall sound quality are good.
Rated sound system: 4 points; listening space: 1.5 points; body structure: 2 points; score: 7.5 points.
Polaris: Young positioning
Listen to more compact space, double doors, sound insulation is better, listen to music better. The speaker installation approach,
enabling more powerful low-frequency, for listening to pop music.
Host host and Passat are the same, high-end models with six-disc CD, popular models with single disc CD.
Speakers front and rear doors are two-way split speaker kit, the young people meet Bora positioning, a strong low-frequency effects
out.
Rated sound system: 3 points; listening space: 1; body structure: 2 points; score: 6 points.
- Grading
Total score of 10 points, including sound system is divided into 5 points, 2 points for the listening space, the body structure of 3
points.
I believe we share on the sound system there is no objection, but why listen to space, and especially to the body structure as an
important scoring standards? Very simple, perfect sound system to match up again, if you want it to release soothing words, the
premise must be the car to have a perfect listening space. Body structure sucks, then the noise inside and outside the car all-
pervasive, enjoy the music can only be talk about the.
to travel to enjoy the most comfortable car audio recommended hearing
Although in terms of audio equipment for cars, but an auxiliary device, the operating performance of the car has no effect. But as
people enjoy increasingly high demand, now, the market for cars has a variety of special high-level audio equipment, car audio
enthusiasts will be a large number of power amplifiers and electronic network device placed in the car trunk, the large-caliber speakers
and subspeaker-25/”>woofer speakers are embedded in other models under the rear window panels and door panel, using a separate DC power
supply, power output up to a hundred watts or more, sound vigorous and beautiful, the level is wrong, to change inside a small space
equipment into a brief appreciation of the delightful music rooms, tempting beauty.
Buy car audio experience:
1, buy a good amplifier, preferably more than 50W of power, the greater the power, the intensity of the better sound control is
strong, easy to meet your requirements.
2, buy a good speaker, it is best not coaxial, the axis is in your car audio speakers become synonymous with poor quality. Select 2-way
or 3-way unit is good, because this way more easily in the car to make a sound effect, increase the air and a sense of cohesion.
3, after doing the above aspects of preparation, we must consider the whole set of equipment accessories, including: cable, power
cable, speaker wire, special insurance, management and so on. Do not underestimate them, it s like blood vessels and nerves, the hub
body of the good things that need to connect up that wire to the sound of impact is enormous, we must be careful when
purchasing.
4, the final low but also to your technical staff to understand the entire installation process, the effect you want to tell you the
technical staff, to ask why, remember this is your right.
Recommend a: ICP
Main functions and features:
1, rate range, big loudness, distortion, especially in the high volume of voice, good sense, penetration.
2, the product configuration standard treble output interface, comes with remote control, easy operation, fast.
3, the product comes with a variety of EQ modes, sound quality is good, your satisfaction guarantee
Product parameters:
Rated power (w): 70
Impedance (ohm): 4
Sensitivity (db): ≥ 90
Distortion (db): ≤ 0.1
Frequency range: 40hz-6khz
Recommend two: the cars were CSPAI
Main functions and features:
1, overload. Overcurrent. Overvoltage protection circuit triple
2, box 15 cm thick all preclude the use of environmentally friendly MDF
3, soft and powerful bass. Clean. For under the Deep Bass Shen
Product parameters:
4 European power 120W * 1CH. (LF)
4 European power before the sound field: 60W * 2CH
Signal to noise ratio: 93%
Distortion: 0.8%
Dimensions: 430 * 300 * 320mm
Recommend three: Yoboshi
Main functions and features:
1,5-inch round dragon totem cards: This product is a unique design, cool appearance, trendy fashion, high-end luxury. Personalized
with color, vivid novel, fresh and natural.
2, using the aesthetic principles of perfect acoustical design, sound quality is pure and beautiful, full phonological clear. Sound soft,
layered, rich voice, honest.
3, access to the material with water, sunscreen, anti-distortion, never rust and so on. Universal 5.5MM specifications with interface
converter transformer, 12V car power supply input, MP3 input, treble output, USB jack, etc. Features playback.
Product parameters:
Signal to noise ratio: 90%
Power supply voltage: 12/24V



