I agree .. the tone knobs act in a much different way, according to the manual, and IMO, and it IS supposed to be class A which makes a difference too.it didn't sound like either a blackface OR a tweed to me....
agreed on that too, and a notable lack of bass, especially compared to say a tweed Deluxe. I have the 1x12 combo though ... I think the head/ cab def has a better bottom.way too much noise
I agree .. the tone knobs act in a much different way, according to the manual, and IMO, and it IS supposed to be class A which makes a difference too.
The main problem with running anything other than all six tubes is the impedance mismatch. When you're running the pair of 6V6s only, the amp wants to see about three times the marked load - so the 4-ohm jack wants to see about 12 ohms, the 8-ohm jack about 24 ohms, etc.
With the EL84s only, it's roughly a factor of two.
The amp is not tweedlike at all. Much more like a BF, but it also has a TON of negative feedback. Just changing the NFB resistor to a more blackface value really opens the amp up.
The noise is due to the two cascaded gain stages after the volume pot - like a Trainwreck, these are essentially wide-open and hiss is the result.
While not exactly bing one or the other, I'd say it sounds and feels more like a tweed than any blackface I've ever played, regardless of what output setup you're using. Mine's a 2x10 combo. The amp is quiet enough as it is, I tend not to run it in 6v6 mode. The only major difference I hear is it starts to break up earlier on the amp's volume dial in 6v6 only mode (even when set for the proper impedance), Otherwise, largely the same amp.
I had a 2x10 combo, and when running just the 6V6's, it didn't sound like either a blackface OR a tweed to me....I found the overdrive with just those tubes kind of unpleasant - very farty and weak.
The clean sound in 6V6 mode was not at all inspiring - it didn't have the shimmer of a good blackface, nor did it have the complexity of a good tweed...