hey Matt, Ive tried it in two houses, and it pops all the time. I havent picked up any radio stations with that amp, but my solid state amps always do….i dunno. Its in the head, I dont know if the tubes need to be replaced or not, but wont that cost a lot? And how often do you have to change them? I have a list of tubes that the amp takes, and Sovtek makes all but one of them, (that I could find anyways). ok, 5U4GB, (2) 6V6GT, (2) 12AX7A, 12AT7, and 7025. Anyhelp on those would be great. Sovtek had most of those for under $10, so I think I like them…hehehe.