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High quality power amplifier distributor


Power amp is a weak signal role from the sound source amplifier or preamplifier, the speaker pushing the burst. The role of a credible sound system amplifier.
Power amplifier, which is one of the largest families of all kinds of audio equipment, its main function is to generate and amplify enough current to push the sound playback of the speaker a relatively weak signal after input of the audio equipment is. Considering power, impedance, distortion, and different dynamic range control and adjustment functions, the different amplifiers in the internal signal processing circuit design and manufacturing process are also different.
In general, be sure to choose a strong heavy aircraft for heavy machine grounds first power supply, most of the weight comes from power amps and chassis, heavy machinery, it is because he transforms more value Means to use a large capacity, or for amplification, use a large capacity capacitor which is to enhance the quality of practice. Heavy chassis Following, weight material luminaire has some degree of material of the chassis, isolated external circuit and radio chassis walk with some help. It is higher than the weight of the chassis structure but is stable, and also avoids unnecessary equipment subjects to vibration shock noise. Third, heavy amplifier, solid material is usually more abundant.
The power sound system is the most important parameter representing the sound system with the function to load. That is why we need to pay attention to the first place at the time of purchase. Even if all manufacturers use their different metrics to identify product performance, lack of sufficient knowledge is often difficult to do objective comparison. The amplifier is also true, attention to the following three points, you need to identify the power supply of the amplifier.
First, battery voltage.
The car battery voltage is constantly changing, due to two common identifiers: 14.4V / 100W, power amplifier 12V / 100W is a completely different explanation. In the voltage state to be 12V, 12V in the voltage state, the voltage of the car actually running is substantially measured power value is close to the actual situation. And it can achieve more when reaching 12V to get more power and will continue to identify as 12V power amplifier reference voltage.
Second, harmonic distortion THD.
When comparing continuous output power amplifiers, it should be the same (or close) to the THD value. The difference in THD sound quality between different values of the test is very obvious, sometimes the highest power identification is high, distortion and noise can be very high. So also, please note THD value to note that it identifies, please check the maximum power at the same time.
Third, the frequency range.
The continuous output of the power amplifier must be detected in the practical frequency range. Specific high frequency power values for power amplifiers should only be required to identify the full range of detection, identification, only if they do not make sense. We can compare power amplifiers, so after determining the same criteria. When choosing a sound system, generally follow the principle of power output in general. Output power amplifier large, the speaker showed that its ability to drive strongly. The power amplifier is easy to use for a long time, the choice of small, high output should be greater than the power speaker, power shown when burning, but also poor sound quality on it should lead to distortion and failure.

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