The problem I having is that the left channel is playing at a lower level and sound muffled/distorted and seems to be lacking mid range (vocals )
Now before I started to try to find the problem, I had bought the capacitance upgrade and 4 military-spec Russian PIO output coupling capacitors that I haven’t yet installed, so thought I would do that first just incase it fixed the problem. I also tried switching the tubes around but no luck……
I’m kid of new to these tube amps so I would appreciate if someone can help me sort out this problem. I’m not sure if the problem is in the driver board or possibly an output transformer.
I was thinking of temporarily switching the left output of the driver board to the right output tubes. That would definitely narrow things down…..What do you guys think? Can that be done? Or are there some tests I should perform first?