Do all Cary amps have a 'Cary' sound ?

IMHO and short experience Cary amps have a certain "house" sound on the warm and pleasure side.
Of course there is variation between a 300B SET and a V12 push pull, they are different ways to work, but always keeping the warmth.

If you compare to QuickSilver or AudioResearch you'll understand that Cary's just a waste of money...
Only good for chamber music and nothing else.

"QuickSilver or AudioResearch" ? Cary pretty much kicks both their asses. AR - great for tube destruction, if you have too many tubes on your hands. As ugly as the worst solid-state gear. Quicksilver - their 8417 and some of the silver 60, silver 90 stuff might be ok. But overall, mostly all Fugly gear, and ho-hum sonically, from my experience. Cary CAD300sei or 805 will trounce both those brands.

-Ed