OK so I bought a Traynor YCV80 amp on the cheap because my neighbor was having trouble with it and didn't want to pay an amp tech to fix it. Being someone who isn't afraid to tackle these kinds of things, I offered him $125 and surprisingly he took it. Let me describe the issue first. Basically, an 80 watt tube amp should blow your head off if you're sitting 3 feet from it with it cranked. On the clean channel, with the volume all the way up and the master volume also cranked, the volume is nowhere near where it should be. To give an idea, I can strike an open G chord and talk to someone sitting next to me only raising my voice a little bit. You would expect to have to pretty much yell pretty loudly to even have a chance of being heard over a cranked 80 watt tube amp. Also, with the channel volume on 5, and the master volume on 5 you basically have what I would call bedroom volume. The drive channel is only slightly louder and does not distort nearly as much as what this amp is capable. Looking at the power tubes, two of them are glowing at a normal brightness while playing but the other two are barely glowing very dimly and do not get brighter during active playing. So basically, I'm only getting the "push" in a "push/pull" design here. All switches and knobs work correctly. It's purely a volume issue. So here is what I'm currently thinking, and my amp knowledge is very limited which is why I'm posting this. I feel like the phase inverter may be the culprit with one of the two triodes being dead. That would explain why two of the power tubes behave normally and two of them only have a dim glow that doesn't change. I don't have the amp yet. He's keeping it a few days until he buys a different amp. If I swap the power tubes and the dim ones then work normally, that would rule out the power tubes being bad in my mind. Okay, now it's time to educate me, please. First, does any of what I just said in the previous paragraph make any sense? Second, if it does and replacing the phase inverter does not fix the issue, what else should I be looking at? Oh, and the speakers are hooked up correctly, they are in phase with each other, not out of phase. I did read something about dirty effect loop connectors causing issues, but this doesn't sound like that. I've had that issue before with a 6505+ I used to have. Thanks for any responses I might get on this!