This is a BNIB Earthquake 40UHC-G, class A/B amp. Specs are 40wts @ 4ohm, 600 wts @ 2ohm, 1200 wts @ 1ohm, all at 12.5 volts. Very rare underrated cheater amp.The only place I could find it was http://www.digitalfrontiersllc.com/earthquake.htm#ampmono. Here are some pics Only reason for selling...