This amp is just amazing. My older amp was a 2 channel Nitro 1000 watt amp and it had alot more cons than pros. It was able to push my subs but it just didnt have enough power. I just installed my HFI1000.1D yesterday and it blows everybody out of the water! My subs hit harder than ever and you can hear me come down the block. I set off so many alarms while i was powering my subs with this amp. Definately worth the price.