I purchased this used off of Reverb a couple months ago. Ran into some very minor issues immediately however, the pots were scratchy and the lower Low EQ knob clipped out at just past noon. I had the amp serviced, but the clipping issue is still present. Also, the power cable is missing the grounding post. The amp still sounds amazing but it is pretty heavy. Aside from everything above, its a good amp, made in the USA in 2007.