I'm selling my Monoprice tube amp. It's listed in fair condition because I don't know if the dac is working or not, or I need a new driver for my computer. I never used the internal dac b/c it wasn't all that great to begin with and ran this off of an external one, and occaisonally through my turntable. It's a beast of an amp and upgrading tubes makes a big difference. I have too much stuff so I decided to downsize to only my Bottlehead Crack.