Although they cost somewhat more than $500, you may want to consider some of the tube-based Chinese-made players offered by Pacific Valve: http://www.pacificvalve.us/cdplayers.html
I have no experience with them, but fwiw their design descriptions seem to say all the right things.
Regards,
-- Al
I have no experience with them, but fwiw their design descriptions seem to say all the right things.
Regards,
-- Al