I guess you're looking for a portable CD with a decent line-out then.
It's really hard to find a modern one with an optical line out (if you want to put it through a DAC and then put it through your amp). The sound quality is magnificent if you can though.
Few people realise that mini-discs can be put through DACs and give CD hi-fi separates a run for their money with this combo.
The best ones are the vintage 2000 decade ones - the Sony 16x oversampling types as well as the Technics/Panasonic ones. I bought a square Panasonic SL-905:
http://pcmonde.com/index.php?page=s...uct_details&flypage=flypage.tpl&option=com_virtuemart&Itemid=5&product_id=23710
It isn't as good as my first generation Technics XLPS - 9000 1 bit DAC cd player (which came out in 1992 and has an optical output as well as a line out). You can amp from the head-phone, but the sound isn't quite the same as from the line-out.....
Check out the Sony D-25 and its latest incarnations on the Sony walkman website. The DE-J01 anniversary edition was one of the most stunning for sound quality (magnesium body). Hard to come back - very expensive collector's stuff now.
If you value high quality sound without compromise, and want superior CD quality on the trot, then the Sony Hi-MD minidisc player - the MZ RH-1 is the only thing you really need. It rips CD as as CD quality (if not superior) and has a way superior built in digital amplifier than you will find on any crappy MP3; iRiver; iPod gadget. You can vary the rip-rate from 1,411kbps, to 320kbps and upload/download from your computer too. It's really cool
