Rjhd --
Well, you've stumped me. The only multidisc CD
player that I know of that has what could be called "excellent sound" is made by McIntosh and goes
for $2,500 [New]. It uses a Nakamichi "magazine"
type loader, which holds 5 discs. Nakamichi makes
a 5 disc player, the MB-10, with the same loader.
It goes for $499 [New]. Neither of those payers will
play DVD's, SACD's, or DVD-A's. I am not aware of
any Carousel type players with excellent sound,
but I have not been shopping in that arena for awhile
so there may be players like that which fit your description of which I am not aware. On the other hand, I wouldn't necessarily look to a carousel player for great sound -- the two don't usually go together.
But, if you have a pre-pro with excellent DAC's, you
could probably plug a carousel player into it via
coaxial digital cable and get decent sound. In that
case, I would look at the Panasonic units because
they make the best DVD players for the money. On
still another hand, if you have a pre-pro with excellent
DAC's, it'd be a shame to plug a carousel player
into it.
Sorry I can't be of more help.