you have your amp running without a speaker load? (doh!). I have a 1979 Princeton Reverb and I wasn't loving the stock speaker. A couple of weeks ago I was checking the amp out hooked up to an extension speaker cab and disconnected the stock speaker. Then I forgot and disconnected the exterior speaker. I had the amp on for a couple of hours warming up for a lesson. I realized what I had done later. After that the amp seamed to be working fine but I was only playing it at bedroom volumes, 2-3 on the dial. I replaced the stock speaker recently with a Ragin Cajun. I wanted to check the sound out at a slightly louder volume so I turned up to 6-7 and it sounds like crap. Very papery and distorted in an unpleasant way. I wasn't sure if this was because the new speaker isn't broken in yet or if I damaged the amp. So, what damage would it do to run the amp without a speaker load? Would the amp work at all? Do my symptoms sound like what could happen? Any help is appreciated. Yours truly, Stupid @ss in Concord, Mass.