Tag Archives: coaxial car speaker

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.

Door noise: cars in the fast-moving, while high-speed driving, wind noise, tire noise and mechanical noise will interfere with sound

system. Hence the need to retrofit vehicles. Generally choose to do shock and noise of the door. Generally use a soft sponge foam to

seal the door cavity, the best is to use a professional shock plate. speaker position with stress: car audio conversion, the high, middle,

bass speakers have separate, 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.

Why would the noise sound system?

1, the electromagnetic radiation interference noise: stray electromagnetic radiation interference environment, such as mobile phones,

walkie-talkies and other communications equipment, high-frequency electromagnetic radiation interference, the surrounding

environment, elevators, air conditioning, automotive ignition, welding and other electrical pulse radiation, the use of studio lighting

control thyristor control of the radiation generated by the equipment, will be mixed by the audio signal transmission cable directly to

the formation of noise, or poor equipment through the shielding shell of jammer interference noise within the circuit. Practice shows

that in some special occasions, such as extensive use of SCR dimming equipment, studio, etc. If you do not take reliable shielding and

grounding, noise will be very serious. Or audio equipment is not working.

2, power interference noise: sound equipment external interference, in addition to electromagnetic radiation vehicle mode, the power

part of the introduction of unwanted noise will be another main reason for noise. City power grid for a variety of lighting equipment,

power equipment, access control devices together to form a very serious source of interference. If connected to the grid in the same

light control equipment, air conditioning, motors and other equipment will be generated on the power line spikes, surge current, the

ripple voltage at different frequencies, through the power lines fleeing into audio equipment, power supply, the total interference

noise can not be part of the sound equipment effectively filter the power supply circuit, will necessarily result in the formation of noise

within the device. In particular, the same power grid is not up to the electromagnetic compatibility requirements of high-power

devices, is the main reason for interference with audio equipment.

3, the ground loop noise: the sound system, the system must require a good grounding, grounding resistance should be less than 4

ohms. Otherwise, the sound system equipment for a variety of radiation and electromagnetic induction the induced charge will not be

able to flow into the earth to form the noise voltage superimposed on the audio signal. If the ground between the different devices

of different grounding resistance due to potential differences exist, or exist in the system of internal ground loop, it will lead to ground

noise. Interconnect two different sound system, they may produce noise, noise from the two systems directly connected to ground

caused.

4, the device s internal circuit noise: sound device has an indicator — signal to noise ratio. Due to internal electrical noise generated by

electronic components in a single device can work to achieve the required targets, but when multiple devices cascaded, the noise will

accumulate to increase. Practical application, some low-level civil audio equipment, internal power supply filtering is not good, making a

great noise communication device itself, sometimes in the sound system in the formation of very serious noise.

car audio cited most basic requirement is – there are sound playback capabilities. Sound system, made to include at least the following

points to be eligible as sound, which is alike any audio system, car audio is no exception.

Composed of six elements of sound reason can be called a stereo sound system, the basic condition is that – there are sound playback

capabilities. Sound system, at least to include the author proposes the following points to be eligible as sound, which is alike any audio

system, car audio is no exception. Consist of a main car audio, speakers, amplifiers of three parts. Host is the most important car audio

components, like the human brain, what kind of sound to be issued, may be controlled by the brain. Currently hosts the popular host

with CD, MP3 CD discs plus boxes and CD / DVD / Car MP5 host,

DVDMP5 host has been replaced in general is car CD sound system, massive hard drive capacity has replaced the traditional discs. Car

MP5 has become mainstream.

Software and Media

What you want to listen? Traffic conditions of the program? Then you have to open radio stations, and transferred to the correct

channel. Want to watch TV in the car? It is more simple, the LCD screen has long been one of the leading car audio systems, and

even if you want to see DV

D software and media is the same. Listen to music? You put a favorite (picture quotation parameters) record it, whether it is CD, MD,

cassette, which is included just inside the singer s voice, you like Liu Jialiang, I want to hear hip-hop, like to hear who will put who

record it, their own likes steamed buns.

Audio

Can decode the software and multimedia agency, that the sources. This terminology may seem difficult to understand, in fact, very

simple thing! Broadcast radio tuner called, commonly known as the radio; play called cassette audio cassette seat; The play CD album,

called CD-Player, but also for compact discs – easy!

Pre-signal control

In short, after the class before the class is, we generally called after the amplifier stage, so the sound source and amplifier

Control signals between the signal processing of all the music parts, are called before the class. For example, the host car audio volume

control, is part of belonging to the former class, which controls the signal strength is the degree. Other audio equipment, the more

often see some of the top-level control, as well as treble and bass adjustment, left and right balance, before and after volume

adjustment, and Loudless loudness control. In addition, there are more complex audio equalizer, audio features and bedside often

seen with multi-frequency tone adjustment, the screen will display a different pattern of the same functionality. In addition, the digital

sound processor (DSP) is now standard on many hosts, simply to say that simulate sports, dance or concert hall the sound features

such as space. All in all, all about signal processing or adjustment of the institutions of the former class.

Car audio power amplification mechanism

Before the sound signal strength level control are only a few volts mostly, not enough to drive single, so the signal must eat, “Dali

Wan,” so that the signal strength stronger, so that it can calculate watts, which will enhance the success of the signal rate of output

of the institution, called PA, which is commonly known as the amplifier. In general, the sound system s total power output value,

which is all the amplifier system and the output power, have been used as a sound system of classification in the size of the series.

speaker Speaker

Mechanical sound waves into electrical energy is called the speaker.
Perhaps the reader has to guess the speaker is commonly known as the horn! Right … … only half the story. Can signal into a sound

body, in addition to the general common round or oval back and forth to the moving coil speaker monomer, there are other types of

speakers! For example, with the sound of metal ribbon type, driven by electrostatic diaphragm planar electrostatic speakers, are also in

place in the audio. But in car stereo moving coil speaker is still the mainstream, the impression that in addition to the United States

and Taiwan EVIL Infinity-style vehicle with ribbon tweeter, other are common moving-coil monomer.

Transmission organizations

A complete sound system, a combination of wire is indispensable components, but wire is often easily overlooked. In fact, wire good

or bad, will directly affect the sound quality, because the wire from the material, stranded structure, the diameter of the insulation

resistance value with the specifications on the design and so different, will affect the signal or power transmission. In the use of wire,

due to the different needs of different equipment design-oriented wire, such as power, ground, start signal, horn, fiber and wire

required for a particular system, are due to their different requirements on the design the difference. For example, the sound quality

of speaker cable required, the purity of the material must be as high as possible, otherwise too many impurities will affect the sound

full play. In addition, between the wire and terminal equipment is also very important contacts a solid or not, a large contact area of

??the joint design and material of filial piety and ground is good, will have a significant impact on the sound effects.

Mostly car audio before and after class one

Transmission among hosts currently commercially available, many already have a source, pre-and post-class, include the audio form the

basic structure. Why do I say? You see whether the host has single-disc CD, tape deck or radio? At least one of the different bar!

That is, source friends. Look at car audio host, is not the size of the volume can be adjusted, but even the most low-end host has to

adjust the treble and bass sound right! That is a first grade. In addition, the host is not there most of the output power it? If the car

audio system, the speaker is pushed directly to the host, then the host must be included in a power amplifier, such as the common

modified the original host or hosts will have most of the power output. The host did not have a built-in power amplifier with output,

commonly known as the host of this dumb machine, only the signal output only. Do not think that the host would be more

expensive, in fact, most of the dumb machines are among the most advanced flagship (offer picture parameter) level, as it will use the

audio must be dumb machine install the amplifier, so the internal parts of the host material is more advanced, the line architecture and

the walk is more complete, so the price is the most expensive!

Aspects of the power amplifier, if accompanied by sound adjustment, electronic crossovers, equalization, or other functions of the

model parameters, it contains pre-and post-class two parts, that is, multi-purpose amplifier; if only purely for power amplifier the

aircraft, that is only part of the after-class.

If it is the speaker? Needless to say, after it is pure class. Even includes a passive crossover, only tailored for the speaker components,

although it is also a control signal frequency and tone adjustment, but it still belongs to a part of the speaker system.

Next time you see any one car audio equipment, you can self-analyze it! Size of the system are sound, some people may think that

their car audio equipment it is simple, and so can be called the sound it? I think if you complete the above conditions, you can specify

the issue or you want to hear the sound, it can be called sound, even if the host with the original equipment is only a few speakers.

Conversely, if a there are several sources, many of the large Department of amplifier volume control system was not able to listen? If

no speaker can sound it? Even if such a system the size is bigger, more equipment, do not be a sound.

The size of car audio systems, depending on the individual requirements for sound quality. Whether your car stereo system size, next

time when you open the car s sound, as long as you want to listen to the music provided for your listening enjoyment services, is the

most perfect car audio system.

But when you select a sound, the best brand to buy a package, it will not only have quality assurance, and product specifications must

be very detailed and will guide you how to properly use, will avoid the embarrassment of using the wrong .