From tubes to solid state. What do you loose...

I'm agreeing with Asa and others. There is no reason to think you are giving up on tube "magic" when you switch out the tube monster amp for an ultra clean superbly designed ss amp - if you keep tubes in the front end, or pre amp. No worry, all the friendly even harmonics will still be there in the end.

hey Asa - I bought the Scintilla.

Yes Asa, the Scinnies are better, thanks for asking. Some quantitatively, but much more qualitatively. The Scinnies are a speaker apart.

I might do the Supra by and by. I love tubes. Thanks to the huge power reserves of the 600 I can pedal the <1ohm Scinnies to full throttle. They have reaffirmed my belief that speaker choice is the apex from which to synchronize all other components.

Don't you ever worry about the rapidly diminishing store of NOS tubes? I know new sources pop up now and then, but prices are skyrocketing. I'm having a devil of a time finding my favorite tubes. Luckily I chanced on a huge untapped personal collection of all types of tubes, that are in the hands of a friend of mine now.

Asa, you got it:

http://audioworld.com/cgibin/sw/forumdisplay.cgi?action=topics&number=1&SUBMIT=Go

Also, as a reviewer, you might find the next site interesting. It holds information on all the Apogees, including reviews, user systems, and specs:

http://208.51.252.167/reviews/scintillating_apogee_hifinews_sep1985.htm

All reviews were written at a time when there were no amps as powerful nor as advanced as the Pass 600. When fully powered the Scintilla looses the few negatives one reviewer noted.