Pop sound when switching on / off Pass Aleph 30?


I'm running an Anthem Pre 1L with Aleph 30 power amp. Speaker is ProAc Tablettle 50 Sig. I notice that when I turn off or on the Aleph 30, there will be a audible "pop" sound from the speakers. I wonder if this is normal else will this damage the speakers in any way?

Advice needed. Thanks.
shsohis

Showing 1 response by phd

Some power amps don't have muting circuits and when powered off it is possible for them to continue play music for a few seconds until their power supplies completely discharge. (Maybe you notice this with the Aleph 30). Amps of this design are more likely to introduce pops & clicks when turned on or off but the advantage & logic of this design is there is no sound-degrading muting relays/circuitry in the signal path.