Need Advice on a Low End CD Player Giant Killer


I'm on the lower end of audiophiledom - I have Paradigm speakers, an Outlaw receiver and a Sony multi-disc CD changer that had the first modification from Tube Research Labs.

My original intent was to send it back to TRL for them to do their latest modifications on it and tighten it up a bit since discs skip a lot or don't read well, but in doing my research online it seems there's a lot of controversy about TRL.

Basically I want to spend $500-$700 tops for a new or used CD player that's a giant killer. I'd love to have a modified multi-disc player if those exist that equal the sound quality of a single disc player, but I'm open. I need suggestions, and if anyone can give me any info on the work and honesty of TRL I'd appreciate it as well - I haven't updated my set-up in a LONG time but am ready to make a change.
soulgoober
First off, the term "Giant Killer" is so over used it has lost most of it's meaning. You get what you pay for......mostly. Secondly, I've never heard a multi-disc player even match a decent single-disc player, so let's slide that off of the table.

The Rega players are about as consistent as any line. Quite musical, solidly built and with digital out for a DAC. I would place my money on an Apollo R and save for a decent DAC for future.
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Don't forget the used market. Ebay is a good source. Look for a used Kyocera that's in good shape. They were built back in the 80's.

This looks like a good one:

http://www.ebay.com/itm/KYOCERA-DA-610-CD-PLAYER-Superb-Cosmetic-Condition-100-WORKING-SOUNDS-GREAT-/291528010866?hash=item43e06c6c72