May I ask if one channel of the amplifier sounds normal, and the other sound is small, what s going

There are many parameters for this kind of failure.

1. First look at the two channels of the sound source, whether the sound is the same loud, you can listen to it with headphones. If the sound source has two channels, one loud and one small, it is not the reason for the amplifier.

2. If the sound of the two channels of the sound source is the same, swap the audio cables of the left and right channels to see if the output sound of the amplifier has changed.

3. Most of them are volume potentiometers.

The resistance changes are out of sync, because the volume of the left and right channels is controlled by the coaxial potentiometer. It is recommended to remove it with a multimeter.

Check it, the check method is: the potentiometer is screwed to a certain angle, measure whether the resistance value is the same, if the difference is very large, replace the same type of volume potentiometer.

Check your volume potentiometer.

After long-term use, there may be poor contact between the sliding electrode and the carbon film. If the contact resistance.

Too much will result in a low volume. Usually, the volume will change, and even intermittently produce a clicking sound.

If not, there may be damage to the preamplifier element.

This needs to be checked to confirm that it is fixed.

May I ask if one channel of the amplifier sounds normal, and the other sound is small, what's going on?

Answer: The power amplifier of the two channels is separated from the left and right channels, and the sound is amplified by the amplifier respectively. The chips are what integrate them together.

One of your channels is normal, the other channel is not, and the amplifier of the other channel is broken.

Solution: Replace the chip with a new one.

The sound of one channel of the amplifier is small for the following reasons:

1. If the internal components of the amplifier are faulty, you can determine the problem by checking whether the capacitors, resistors, transistors and other components are normal. If there are any charred or deformed parts, they need to be replaced.

2. If the line contact is poor, check whether the connecting cable is plugged in and not loose, clean the connection and plug it back in.

4. If there is a problem with the channel balance setting, check whether the channel balance setting of the amplifier matches other channels. If the channel is not balanced correctly, it will result in a lower volume of one channel.

5. For power supply problems, check whether the power cord is plugged in tightly and whether the power switch is turned on.

Precautions for choosing a power amplifier machine:

It is very important to choose a power amplifier that suits your needs. When choosing an amplifier, you need to pay attention to factors such as power and impedance matching, number of channels, feel, texture and workmanship, brand and reputation, and **. The output power and load impedance of the amplifier should match the connected speaker or speaker, and the number of channels of the amplifier should match your audio needs.

A good amplifier machine should not only provide great sound, but also have a durable case and an easy-to-use control interface. At the same time, brand and reputation are also one of the factors to consider when choosing an amplifier, and well-known brands usually have better build quality, good after-sales service, and longer warranty. Finally, ** is also one of the important factors to consider when buying an amplifier machine, it is best to choose a suitable amplifier according to your budget.

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We are happy to answer for you: what is the reason that the amplifier has a channel with very little sound? A:

Hello dear, the merging machine is likely to be the potentiometer aging or the signal line contact is not good, adjust the potentiometer well, if it can be normal, it is best to replace the potentiometer. The post-amplifier may have a problem with the signal circuit, first determine the quality of the amplifier board and then find it. The reason why the amplifier has a channel with very little sound is as follows:

Clause. 1. The input signal or input line problem of the power amplifier can be confirmed by the two-channel modulation method. Clause.

Second, there is a problem with the speaker itself, same as above. Clause.

3. After the above two situations are eliminated, it can be determined as an internal problem of the power amplifier. It may be caused by damage to the amplifier components, asymmetry of the volume potentiometer, etc. If you have any questions, you can give me feedback in time!

1.The best way is to switch the speaker wire, if you move to the right channel hoarse, it means that the power amplification power tube changes.

2.After the switch, the left channel is still hoarse, which means that the power amplifier is normal, and the voice coil of the left channel woofer is faulty.

Two channel power amplifier, one channel is normal, the other channel is abnormal, generally the triode soft breakdown or aging caused by hoarse distortion, you can power off the measurement of the two channels comparison method, that is, to measure the difference in the resistance value between the polarities of the triode, the suspicion of removal and measurement, must be checked, replaced with good components, low voltage test on the line, to have some hands-on ability.

First confirm whether the sound source (audio input) signal is good (including the audio input line), then check whether the speaker is good (including the audio output line), and finally check the power amplifier. Generally speaking, the failure rate of power amplifiers should be high. The sound of the power amplifier is not equal, and it is also related to the position of the left and right balance knobs of the power amplifier, which should normally be at the middle scale.

If the above are normal, it must be a bad power amplifier, check the power amplifier from the following 3 aspects. 1. In the power supply part, many power amplifiers are powered by positive and negative voltages, with the ground as the zero point, which requires the absolute value of the positive and negative voltages to be the same, 2 check the signal input part and the output part, 3 check the left and right balance potentiometers and volume control potentiometers on the panel. The power amplifier has two channels, left and right, which can be repaired compared to the normal one channel.

The power amplifier is loud on one side and small on the other, this troubleshooting method is to see if it is a problem with the power amplifier, or the problem of the difference in the strength of the left and right channels of the audio source signal

1. Use the plug of any channel audio source, respectively, insert the left and right audio input terminals of the speaker, at this time, listen to whether the two output sound sizes of the amplifier speaker are consistent, if the same, the left and right channels of the audio source signal are not the same, please check the reason for the difference in the strength of the sound source signal.

2. If the output sound of the power amplifier is different, it is the amplification output of the left and right channels of the power amplifier is inconsistent, check the output fault of the power amplifier: if the power amplifier block adopts the OTL output circuit, focus on checking whether the power output DC capacitor is in good condition, if there is swelling and heating.