Quick video of my XTC classic doing some metal.
The memory card got filled up so the video cut off early... sorry about that. I'll have a longer video with the other channels and different settings and what not later next week.
I used the Tokai LS150 with the sheptones into a JHS klon clone to boost the amp then from the amp into a splawn 4x12 with a pair of K100's and a pair of earcandy green machines.
Not shown was the amp also being on the "new" setting on the back.
Also, just so everyone understands and it probably goes without saying, no the amp really wasn't made to do this. That's the Uberschall's priority but it's nice that with the help of a boost, the amp can get into uber territory and still stay clean and defined. Even at the end with the mids at 10 o'clock, the sound is still nice and full with lots of that chewy fat bogner lower midrange.
I think with a drier cab like a Mesa or Diezel 4x12 it would probably sound meaner but I didn't get the amp to do this kind of stuff. That's the Nitro's business.
Enjoy!
- Drew
Last question...(I swear!) I've played for 30 plus years but never biased an amp. Always had a tech do it. If I buy the matched set from her, will it need biased? And if so, any pointers on doing it? Thanks! You've been a huge help!
JCM800X4 2 weeks ago
@JCM800X4 THEORETICALLY a properly matched quartet of EL34's will drop right in and be perfectly fine but fine tuning the bias will yield a slightly better sound if you play the amp cranked to the point where the power tubes really start getting pushed. at low volumes, you wouldn't notice much difference.
I don't have any experience biasing the XTC but there is an internal trim pot for bias voltage adjustment located by preamp tube v10 that a screwdriver fits down into
If in doubt call bogner
FastRedPonyCar 2 weeks ago
Thanks for the response. Obviously the head is used (I just bought it two weeks ago) I absolutely love the amp other than the noise. I've suspected all along it needs to be retubed. Thats my next step. Thanks man. And just to let you know, your demo of this head sold me on it. Keep up the good work!
JCM800X4 2 weeks ago
@JCM800X4 haha I get that a lot. For your tubes, go to valvequeen and get them from her. She's a friend and has the best testing/matching in the business. Tell her I sent you. I've bought the last 4 or 5 re-tube kits from her and not one bad tube. Also, unlike the other sellers, she burns in and tests all the power tubes and matches them AFTER burn in.
FastRedPonyCar 2 weeks ago
Do you find your classic is noisy in the "old" setting? Mine has a terrible hum when switched to the old setting. And of course....thats my favorite setting on the amp. I think mine has an issue I need to have it serviced.
JCM800X4 2 weeks ago
@JCM800X4 that is strange. Mine was quiet in all settings. Have you tried swapping the power tubes out? I'm not sure exactly what happens with that switch but from what I gather, it has something to do with the way the power tubes operate maybe?
A cheaper solution potentially would be to try swapping preamp tubes. Not sure if they affect that or not but they're inexpensive enough that it may be worth a shot. Good luck!
FastRedPonyCar 2 weeks ago