MA Audio HK4000D Car Amp

This amp is worth every penny, especially if you have it modded.... yes modded... this thing can be modded to take 18volts, so u can have a higher rail voltage.. which when it comes down to the nitty gritty.. that is the voltage that comes into each little.. or in this amps case.. large transistor. that makes the sign wave (signal) on the base become huge when it leaves the collector.. meaning a larger output than what the amp is rated.. and also...I have 2 of these amps, and ran them daily at .7 ohms with no problems.. and even burped them at .3 ohms with no problem *NOT ADVISING YOU TO DO SO!* BUY THESE AMPS

I love this amplifier. i have it pushing a 18 inch kicker solo x square. it pushes it enough to where people can not sit inside my blazer. and that makes me feel good about this amplifier. and the speaker is still under powered. it is a 10,000 watt sub. i decided to buy this amplifier becuz i heard about a few friends talking about it so i go on ebay and found one for a couple hundred dollars cheaper than what they paid for theirs. and it is still a high power watt amp. and it is everything the seller made it out to be..