【 Weak current College 】 car audio conversion in the amplifier's Select method

Car audio as a branch of audio, with sound of some basic principles. As the flow of the Music Hall, bringing gulv becomes a pleasure. Regardless of whether the car audio enthusiasts, face the full metallic equipment will be by its unique magnetic. But perhaps for most people, buying a satisfactory sound equipment it is a difficult problem.
Below we will explain some of the power amplifier selection of tips.
OK same benchmarking amplifier power
Power is the sound system in the most important parameter that represents the sound system with load capacity. This is our first should at the time of purchase. But if all the manufacturers use different measurement benchmarks to identify product performance, lack of sufficient knowledge is often difficult to make an objective comparison. Amplifier also is the case, in view of the power amplifier should note the following when identifies three things:
First, the battery voltage.
Automobile battery voltage is constantly changing, for two common ID: 14.4V/100W, 12V/100W amplifier is two completely different power. Since the car driving voltage is basically about at 12V, 12V state the measured power values closer to reality. And to the continuous voltage 12V identifies power amplifier reaches above 12V can achieve greater power.
Second, the harmonic distortion THD rate.
In comparing the amplifier's continuous output power, in the same (or a more nearly) THD values. Different THD values to test out the sound quality difference is obvious, there are times when it identifies the maximum power is high, but most likely it's distortion and noise is also very high. Therefore the maximum power in check and also should be aware of the identity of THD values.
Third, the frequency range.
Power amplifier for continuous power output should be in the actual use of the frequency range to be detected. For the power amplifier should be required to identify the complete detection range, only identifies a frequency power value has no meaning.
In the same benchmarks were identified, we will be able to compare the amplifier power. Typically, when you purchase audio system generally follow the principles of high power output. Amplifier output power, the greater demonstrate their ability to drive the speakers. Amplifier power should be greater than the indicated power of speakers if you choose to use the power is small, in the long-term use of high power output, easy to burn out, also causes the sound quality is poor, distortion and failure to appear.
High-quality amplifier should possess factors
Of course, the mere introduction of high-power text is not to be able to better understand the power amplifier is good or bad. High-quality amplifier also must be able to respond quickly out of the music signal peak, at the same time able to correspond to the powerful bass and low distortion/low-noise mode can provide stable output. To meet these requirements, you must have the following points:
First of all, the power is of good performance. This is about power amplifier sound quality. Its power supply and amplifier design, the Ministry should separation reduces noise. Using a large boost transformer improve supply stable current, as well as large capacitors that can respond more quickly to supply the required current amplification.
Secondly, the built-in parameters of the device. Car audio and home audio are quite different, Speaker mounting position is very limited, sound adjustment is important. In addition, because of the headrest and the Windows sound effect of shade as well as bass speaker installation angle of Sonic chaos, car audio systems for sound effects. This function is the parameters of the device, it can be the cause of the crest of the wave, the trough to compensate, adjust the smooth sound field.
Furthermore, there is a built-in divider. Regardless of the amplifier itself how excellent, practical features installed in the car, but also because of the wide range of audio problems, the speaker configuration issues to achieve the best results. In order to overcome these, in addition to the parameters of the device must use the divider. Built-in divider has two benefits: first, the system has expanded to freedom on the amplifier and speakers. Second, make adjustments easy. This makes the whole system for improved sound quality. Using an external crossover system because of the wiring is complex, easily mixed with noise, installation requires a larger space and make the system price increases, so select the car when we work on is not recommended. Clearly the different uses of power amplifier
Select power amplifier only manual gives a simple parameter is not enough, according to the entire sound system, also need to have a good listen to other users or professional opinions, depending on its purpose selection of different models and brands of power amplifier. According to different purposes can roughly be divided into the following categories:
1. specially designed to promote the bass speaker amplifier: built-in infrasonic filter eliminates the external filter.
2. band equalizer amplifier: for personal preference or different compartments of spaces to adjust the sound.
3.5 channel amplifier: typically use 2 or 4-channel amplifier to drive and rear speakers, subwoofer speaker is from another amplifier to drive, this area occupied, it uses a 5-channel power amplifier, a power amplifier can solve the problem.
4. multiple pieces X card power amplifier: unique X cards for the power amplifier provides several minutes audio choices: high-pass, band-pass, low pass, even Super Audio filter.
5. electronic tap tone for modular power amplifier: the control module is to let you select which type of signal going into power amplifier and a power amplifier RCA output, select the desired frequency and sound points. Through the replacement module, you can make a power amplifier into a diversified power amplifier.