Selling my PS AUDIO DIGITAL LINK III which includes a CULLEN CIRCUITS DL3 STAGE IV upgrade. This DAC is in pristine condition, no scratches, dings or dents. The CULLEN CIRCUITS mod made this already fine DACV into a great one. The MOD IV provides better bass, a warmer mid-range, more extended highs and a deeper stage. The price of the mod was 900.00 a couple of years ago. I have the original box, manual and sales receipt as well as the Cullen Circuits receipt. I will also cover the shipping.