AUDIOTEKAT4000M 1 Channel Monoblock Car Amplifier - 4000 Watts, 2 Ohm Stable, LED Indicator, Bass Knob Included, Mosfet Power Supply, Great for Subwoofers

Good sound if u use 1 12" sub or it starts to turn off.

The amp keeps blowing after the first 3 weeks this is a trash amp should have never bought it. lesson learned. Can't even handle 2 12" subs and a 10" Garbage!