okay you are right I did measure upto 6v rms on my scope with a 24v p2p supply.
I am working on the final amp on a large proto board. I have good size heatsinks and everything and will finish it by tommarow. I am going to boost the voltage of the power suppy with a smps boost converter voltage regulator, do you think 30-32V p2p will be fine? I figure if current is too high I can use output transistors but from what I have learned from speaker design, output resistance alters the speaker's Ts paramaters and reduces efficiency. It changes the Qes. What do you think If I add some output resistance? It would be nice to add resistance to chill things out but idk if it's a good idea or not.
How specifically do I bridge with a single rail power supply? Isn't the signal still VCC - GND after the output transistors, before the output capacitor? And the capacitor does the job of centering the output at 0v and allows swinging below GND? So If I bridge two single rail amps I omit the output coupling capacitor?
one more thing, was your loss calculations through the transistors (2v) a total of both sides (npn, and pnp) I figure it is always about .7 per transistor.