Cary Audio Design had 4 x 306 models, which was yours, then I can give more info on it, as I'm very fond of some and done some great I/V stage and buffer output mods that made them one of the best sounding Redbook cd players you can have, as they had real R2R ladder multibit dacs inside..
Cary Audio Design CD 306
Cary Audio Design CD 306/200
Cary Audio Design CD 306 SACD
Cary Audio Design CD 306 SACD Pro
Cheers George