I have stereo balanced Uber running but need to get it to run cooler.
the most Bias I have tried is 200mv across the emitter resistors and I get to 65c in 30 min..
things to do: increase airflow, may try lower voltage transformers as I have 50v at the caps and could do with 44v
Do plan on redoing this when happy, take it apart and re wire, adjust things. Clean it up.
Been reading the KSA50/100 clone thread at the other place to gain ideas.
with what I've done it might end up with 25wpc class A and the rest AB which is still a Monster
I would just bring the GRLV rails up closer but don't know how.
I think it would be better if the output regulator pass transistors did not have to bleed off 10v each.
The outputs are very stable at under 1mv, there is no turn on / off thumps
and it does sound good.