Maybe you guys can help me with this. Both channels on this amp work and produce sweet sound. However... I get a shhh/water flowing sound noticeably with the normal channel at full volume, and very pronounced with the bright channel as soon as you start turning it up. This happens regardless of whether a guitar is plugged in or not. Here is a video (with no guitar plugged in) so you can hear what I'm saying better: http://youtu.be/9Xp65WD_a_E I'm guessing that I need to ditch the brass plate, isolate the jacks and pots from the chassis, then put all of the input grounds at a single ground point near the input jack... right now i'm following the weber scheme. I have poked around the leads with the chopstick but that didn't seem to impact the background noise. It almost sounds like television static - maybe I shouldn't have gone with the TV front.