I have Micca A250 digital amp connected with a 24 DCV ac adapter. I have it connected to an AC power strip with on/off switch. If I switch on the power strip followed by turning on the volume knob on the Micca the pop sound is minimal but if I forget and leave the volume knob on the Micca and switch on the power strip, it makes a loud popping sound. Is there a way to delay or attenuate the popping sound?
If you can get inside the power strip, connect an X capacitor of around 0.05uF across the switch.
Unplug the strip first, of course. That should filter the noise out.
https://content.kemet.com/datasheets/KEM_C1065_X1_440_VAC_Y2_300_VAC.pdf
Unplug the strip first, of course. That should filter the noise out.
https://content.kemet.com/datasheets/KEM_C1065_X1_440_VAC_Y2_300_VAC.pdf
Use a 555 timer circuit to make a monoshot pulse to mute the amplifier for say 1 second after turn-on.
Turn amp ON-OFF using its own switch.
Clearly designers took care of the problem.
Now if you bypass their solution .......
Plan B: unplug speakers before turning ON or OFF and re-plug them after.
Not kidding, large amplifiers have that built-in.
They use a speaker relay and some time delay.
Clearly designers took care of the problem.
Now if you bypass their solution .......
Plan B: unplug speakers before turning ON or OFF and re-plug them after.
Not kidding, large amplifiers have that built-in.
They use a speaker relay and some time delay.