Re: gain on 12
Hello Peavey Classic 30 owners, and lovers of this great sounding little monster,
You might try an old stock 12aT7 for the first tube in your "Normal" channel if you haven't already. I know, I know, it's not ordinarily a good "tone-shaper" tube. It usually isn't the best choice for the V1 tube because even though it is a "lower gain" tube, it conducts 5 times more than a 12aX7 and so it juices subsequent gain stages too much. However, in this circuit it performs wonderfully well. Even better? With the T7 installed in the V1, try dropping the "Mids" all the way OFF and listen to what happens when you turn up the volume a little. The bold zing, swing, and clean sustain are all pretty amazing, aren't they?
Don't worry about what that T7 will do for your "Crunch" channel. V1 is not the first tube the distortion channel hits. V2 is. Otherwise, the 12aT7 would make the crunch channel sound terrible. Instead, a glance at the "Pre" and "Post" dials on the other channel will remind you that this is a James Brown-designed amp, and yes it is capable of offering the same amount of harmonic distortion from its preamp that a block-letter 5150 is capable of, but it uses less gain stages (tubes) to do it. It nevertheless is a very high amount of gain, and it's the punchiest of all the Peavey Classics. So do yourself a favor and get a "High Grade +" 12aX7 from Ruby for the V2. I did that, and I use a Philips 12aT7 in the V1. Those two are great for each other in that order in this amp. I smooth out all my breakup with a GE 5751 for the phase splitter. I want to wreck into the power amp with the nicest crunch I possibly can. The T7 did not sound good here. A Sovtek LPS took 2nd place. But that 5751 is the clear winner in the PI slot on this amp no matter what the other tubes are. I turn up to 7 or 8 on the "Post", and yes, the "Pre" on 12 sounds superb. It sounds as good as anything else does, and yes, four EL84s can chug and djunn just like anything else can. I plug straight in and play stuff like Creeping Death, MegaDave, Powerslave, Gojira, and the harmonically distorted stylings of Edward Van Halen.
If you want to play a 5150 in the sweet spot at 2 pm on the Post, it is just too loud for any purpose other than living in an isolation cab or a stadium. A Classic 30 head into the right speaker cabinet can be the perfect solution. The sound person at the venue will actually let you turn up to the sweet spot, and get that same exact sound. Do any of you doubters think a 5150 can't be used to make heavy metal music?
This is a 5150 in a 30-watt package.