Excellent condition First Watt J2 amp. Balanced and single-ended inputs. Sounds fantastic, and looks great! This is the third of these I have owned, and I really think it sounds a bit better than the two I previously owned, which also sounded great. This one just has a bit of something "extra". These J2's are the biggest sellers by far of the First Watt amps, for good reason. They sound the best! Extremely dimensional, full of realistic tonality, and great musicality. You just get lost in the music!