Two RCA analog outputs; one tube based and the other transistor based.
Uses 6N3/2C51 tube variants for the tube stage.
Single ended headphone out capable of adequately driving most power hungry headphones. Volume pot only controls the headphone out and not the RCA lines outs.
Multiple digital inputs:
USB - up to 24bit/192kHz
Optical - up to 24bit/96kHz
Coaxial - up to 24bit/96kHz
BNC - unknown (never used)
Will include a spare 6N3 tube.
Dac is in excellent shape. This is the Dac that the Grant Fidelity 09 tubedac was based off.