Dennis,
Thoughtful, interesting comments about bias. I too have settled on 65mV, just a tad over 68mA. It does seem to enhance bass, but at the expense of smoothness in the top end.
I'm pleased that Phillip likes the new amps, he did hear your LFII, the early Soraya, I take it?
I'm now into a completely different design, simpler in some ways actually, but it always takes a long time to get the compensation exactly and precisely figured out. I'm nearly there for my new 150W amp.
I hope to see you some time soon in Melbourne, Dennis!
Cheers,
Hugh