Recent content by B25Expert

+ 1 for the Ampeg v4/v4b and the B25b, these two amps ( especially the b25) have VERY similar circuitry and tones as a b-15. Plus, the B25b's usually go for around $400-500 on ebay, so they are comparatively cheaper than b-15s. I would personally opt for a v4 though, because they are louder...

Ampeg or Gallien Krueger

Make sure the note-to-note volume is at least close to equal when the eq is flat. Check for scratchy pots, and that input/output jacks arent loose/broken. If you can, also see how transformer gets after about 10 mins of being used. If it is burning hot you may have to rebias the tubes, and...

Sounds like a rectifier problem to me

I forgot to add that i use an active shecter bass with EMG humbuckers, so that may be why it breaks up at 10:30 instead of 11

I am no expert, but from my experience with these amps is that you may have your power tubes biased too hot, or maybe you even have a higher gain 12ax7 in your preamp. These are the first two things that lead to your premature distortions. Ps. Mine breaks up at about 10:30 with JJ 7027As, a...

First post here..... I recently acquired this beauty last summer for $400. It had previously been completely re-tubed and checked out by a technician. The B-25s are so versatile! :hyper: everything from old school b-15 tones to overdriven SVTs. The only down side is that it was originally...