Very nice older amp from PS Audio. These are unique in that it uses PS Audio gain cell design which varies feedback rather than gain to adjust output volume.

I found that this amp sounds fantastic with Grados, really takes a lot of the edge off. Also has great control of bass with my Denon d5k which can become bloated on other amps.

This is a late production with USB, XLR, and RCA input.

Comes with original box.

Hard to tell from the pics but this sucker is huge and heavy.

I will cover the shipping and PayPal fee.