Same here. I generally prefer a more scooped tone, and to me it sounds like the closest voicing to the earlier Uberschalls. They should've switched the Ü and the Hair+ labels.
This pretty much sums it up. The UU can get close to a Rev Green, but there’s something totally unique about the tone the Rev Green has in its organic, 3D tone that just can’t be replicated.
OP, have you tried a Rev Green/2 version yet? It may be what you're looking for. My Rev 2 is more aggressive, organic, and 3D than the Rev Blue I owned.
Stupid me decided to try to swap out a quad of EL34s while I’m sick. I accidentally turned the bias pot the wrong way and the current shot up to about 170 mA for about 15 seconds before I realized what I had done and switched the amp off. Are these tubes toast, or is that too short of a time...
There are two pots on the exterior of the chassis, one that controls the bias for V7 and V10, and the other for V8 and V9. I think Bogner biases their EL34 Uberschalls at 25 mA, which is fairly cold. I usually biased my earlier Uberschalls at like 30-32 mA (about 60% dissipation).
Quick question for Uber Ultra owners out there. I had a Twin Jet previously, but the external bias points are different on that amp. Using a multimeter, do I put the negative (black) lead in the point labeled Ground and the positive (red) lead in the points labeled V7, V8, etc.?
Also, are the...
Bogner really knocked it out of the park with the Uber Ultra. It’s a very versatile amp that can get myriad tones, but it absolutely slays at metal. The only downside is that it’s pretty noisy on the highest gain settings.