13
Warning
2. When the signal line without shielding is used, there will be interference signals entering
the power amplifier for amplification. It is recommended that you replace the signal line
with shielding.
3. There is still noise after troubleshooting the above two points，Please confirm the noise
is from the external or the internal. Disconnect all inputs, only retain the power supply
and output cable, if the noise disappears, that means the noise is from the audio input.
If the noise is still there, the noise may be caused by interference with the power supply
or generated inside the amplifier.
A: Please confirm the on-off sequence is correct, normally it follows the order of signal
transmission when turn on: audio source → preamp / DAC → amplifier → speaker.
(The sequence is reversed when switching off. As the internal capacitors will be discharged
for a while after shutdown. If turn off the preamp firstly and then turn off amplifier, impact
sound will be easily caused which may damage the amplifier or speaker in severe cases).
1. Please do not open the machine shell. Improper operation may cause electric shock hazard.
2. Please use the switching power supply of the regular manufacturer, otherwise there will be
the risk of damaging the machine.
3. Please do not operate the machine in high temperature or humid environment.
Q: Why is there a thumping sound when switching on/off?
To Next Page
Loading...
