Hi Bass chatters. I have an Ampeg SVT IIP preamp that has served me well in the past, but it has developed a fault. Playing through it before into my power amp, then into my cab, it started to loose gain and start sounding scratchy. I swapped basses, still the same problem. I swapped preamps, then no problem. I have discounted basses, leads and the power amp, so the problem lays with the Ampeg
As I say, it started to loose volume,ie gain strength. As well as getting quieter,then getting louder, then starting to sound scratchy.
Any ideas as to what could be the problem?
Thanks in advance
Steve.