@chmaiwald , thank you!! I should note (for whatever it might be worth) that I "upgraded" the crossover networks in the Cornwall IVs, damped the horn mid and horn tweeter, and installed proper binding posts. Some may hear a difference some may not. I used high quality Cardas solder, VCap ODOM caps throughout, Path Audio resistors, and some decent binding posts from Partsconnexion. I did not change any values/tolerances with the swapped parts.
Also chmaiwald, I think you are spot on about the bias setting. Strangely, biasing it at ~90ma, as opposed to 120ma, did not result in things sounding sluggish, slow, or out of place.
@charles1dad, you are wise. I have always enjoyed your feedback and guidance. There are folks on here that seem to want to litigate everything--you seem to be the opposite and are always helping and sharing knowledge! Thank you!
@djspinner , you are correct! I hate to admit it. I'm guilty of making too many lateral moves. Maybe I just sell all these amps and buy a Jadis or Japanese tube amp! But my goal is not to have a big collection but rather find different pieces to allow different "sonic meals" if you will. No piece of gear is really ever perfect so I like to experiment and have different presentations.
Last night's listening session went way too late! 2:30 am.