Rockford Fosgate Punch P1000X2. I've only used this amp for a couple of months! My wife bought this amp for me not knowing I needed this amp for a 2 ohm Kicker speaker box single channel wired in parallel. This amp is designed for a single channel at FOUR ohm or TWO ohm if my Kicker was wired in series. For how much I push it, the amp was running really hot so I now have Rockford Fosgate's 1000 watt amp for 2 ohm single channel. I've ALWAYS used Rockford Fosgate amps to drive my subs! BEST CHOICE, HANDS DOWN! This is a STRONG amp. Clean power. SOUNDS SUPERB! She paid $499 plus tax new. This is a deal for $200!