I don't know if this has been the experience of any of the forum members.
I have Strat >> Boss WM20 wireless >> Magicstomp >> ACTone >>Focusrite 2i4 >> ACER PC >> Cambridge power amp >> passive B&W spkrs
All power adaptors are matched OEM's originals and visually in good order, but, when playing the volume level sometimes fades slowly by approx 30% then returns to full volume. It doesn't happen in a cyclic fashion and sometimes without fading at all so, before I start going down blind ally's I was wondering if anyone had experienced this with any of the above components in the chain ... My suspicion is one of the power supplies is beginning to fail maybe the magicstomp?
It took a while to find the culprit in the signal chain, but it turned out be the No1 input channel Gain Pot on the Alto ZMX 52 mini mixer that I use for guitar (I use channels 2/3 for backing tracks). I managed to clear the dead spots, cracks and pops by spinning the gain a few times. I have a spare so will change it out asap. The Alto has been a great little work horse, but I always leave the Gain set where it is and just tweak the level pot occasionally. So, don't take you're Gain Pot's for granted, I guess.