OK I misspoke, the C222ES, C333ES, and C555ES do not have variable outputs, per the manuals on the Sony site. I did a not-so-quick search and found that the CDP-C87ES and CDP-CA9ES units do have variable outputs. I'd stick with an ES unit if you buy a Sony. There is a CA9 on sale on this site RIGHT NOW:
http://www.audiogon.com/cgi-bin/cls.pl?dgtlplay&1329018251&/Sony-CA9ES-CD-Changer
but there is a sale pending...
http://www.audiogon.com/cgi-bin/cls.pl?dgtlplay&1329018251&/Sony-CA9ES-CD-Changer
but there is a sale pending...