OP Hifi's are some of the most ineffecient amps. I've ran my car with MB Quart, Alpine, Rockford and Hifonics. All about 1000 rms. The only amp that ****** juice and dimmed my lights was the Hifi. I'm not going to say it didn't work. It did it's job well. Just prefer the other ones over it. Listen to Audiobaun and Disturbed. The guys have both been around a while and know their shlt.
