THIS IS A VWRY RARE AND CLEAN AMP. OLD SCHOOL ROCKFORD FOSGATE POWER BD1000.1 AMP. RATED 500X1@ 4ohms 1000x1@ 2ohms. BUT WILL PUT OUT OVER 1200 WATTS AS TESTED!!! THIS AMP WAS ONE OF ROCKFORDS BEST. ITS THE MORE BETTER MADE AND MORE POWERFUL PIWER SERIES. (Not the punch). THESE HAVE AWSOME POWER AND SOUND QUALITY. ITS A BEAST!! THIS AMP IS IN GREAT CONDITION WITH MINOR MARKS AND WEAR (see pic). THIS AMP HAS HUGH POWER/GROUND INPUTS 4GAUGE. (Punch inly has 8). HAS BUILT IN LOW PASS CROSSOVER. NO REMOTE BASS OR END CAPS INCLUDED. SOLD NEW FOR OVER $800. DONT MISS OUT ON THIS USA BUILT POWER HOUSE!!! GREAT TO POUND ANY SET OF SUBS YOU HAVE. WORKS GREAT BUT SOLD AS IS.