I BOUGHT ONE LAST YEAR IT WAS A MM 2000D ON MY KICKER CVX 15'S LOVED IT(DRAINED BATTERY REALLY FAST) ON REGULAR ALT WITH BIG 3 THESE AMP WERE UNDERRATED (I HATE THAT I SOLD IT)NEVER TRYED THE NEW ONES YET MAY GIVE THEM A TRY. FROM WHAT IM HEARING THEY OVERRATED BUT WHO KNOWS