I have that amp in my car (aq1200d)...this amp has not given me any problems at all running it at 1ohm. I've had a couple different amps ( Sundown audio sae1200v1, MA Audio hk4000, Powerbass asa1000) none of those compair to the quality of the aq1200d. The sundown is good but it always went into protect and was constantly in the shop. I've heard the new ones are better...although I havent ran them myself. You cant beat the customer service with AQ either. Holidays and weekends DJ and his wife are there for you...they will call you back and get to the bottom of your issue. I have bummped that amp in 100 degree weather in a black car and it NEVER went into protect. I recently upgraded to the 2200...AQ is just a really good product.