Synastr
Member
I got a mtx thunder 600xd. 600rms at 2ohm. Used to have paper saying 631 tested. Great amp. Very strong. Sell it for $80 shipped
http://www.crutchfield.com/S-oDwZmLWWLyo/p_236600XD/MTX-X-Thunder-600XD.html
http://www.crutchfield.com/S-oDwZmLWWLyo/p_236600XD/MTX-X-Thunder-600XD.html