Up for sale is a used Marantz CD6004 CD player with audiophile upgrade. CD6004 uses the same audio circuit as SA-15S1 except using the non-audio grade (and less capacitance) capacitors in headphone amplifier section. This player replaced all eight capacitors with the best audio capacitor ELNA Silmic II. The output capacitors' capacitance has been increased for better bass and sound stage.

The sound quality is much better now (headphone only, no change in DAC output). It has the same sound quality as SA-15S1 now except no SACD playback.

The player is in excellent good condition with minor scuff in left corner. Including player and power cord only, no remote or other accessories.