it was a shity pioneer i think the (760 watt )i use for speekers for some reason when i was changin my fuel filter i have to remove the neg and when i was done i reconected and boom the thing was almost on fire and alot of smoke in the car. i think it was like 200 dollas. i open the amp and were the neg and pos black little squares where burn up in half well i tink 2 out of 5 or so