I need to know if I have a problem with my 2:90 Power Amp

[vanman]

At half power I can crank it all the way up to the max. It's kinda loud but it is not so loud that I can stand in front of it. One side does not have the same umph and the other. I switch the power tubes from A to B and the side with the less umph moved to the other side. So I may have a tube problem. I didn't think at half power that I would loose this kind of volume.

Thanks for any feedback you can give.

 

[luigi]

If you moved the tubes from one channel to the other and the problem followed the tubes...it is definitely a tube problem. Replace them.

If a tube is going the channel will sound weak......sounds exactly like whats going on.