Definitely not convenient and probabt not what I wanted to do either. Just wanted to remind everybody of this obvious solution.I can see that thus would work but using the A7 monos vol bypassed as poweramps was the appeal in getting them and I'd rather not have to manually level-balance the 2 channels.
Luckily, my speakers are of rather medium-low efficiency (funny to say that
All true. Would definitely increase the costs,. though, and the physical switch was most suited to a design with integrated PSU.The preferred solution would be, obviously IMHO:
- physical power switch (even though one would ideally cut off the power to the SMPS brick for a real off state).
- standby/operate switch with several positions, on / off / 12-Trigger / signal-detect, the latter maybe with 2 or 3 different sensitivities.
Without any changes to the board layout, I think that reducing the sensitivity for entering standby (probably just different resistor values) and an increased delay time (MCU firmware change) would already improve the situation for many of those who are affected.