This might be a dumb question but is it possible to open the minibus’s without damaging it so I can gaze in wonder at its innards? Also it it possible for me to put a dc blocker pcb in front of one of the duplex outlets? I put a dc blocker in front of my surges and it stopped it from humming, which gave me newfound interest in my atl hifi dc blocker which I previously thought had no effect