I had 2 of the Viper 1200's for 3 years with no problems very solid and powerful easily 12-1500 RMS and I never had a problem with either one of them. I also bought a Viper 200.4 at the same time and it has been running good for 4 years, and still going in my current install. I also had 4 of the 12" die cast subs, all was very good equipment. I agree with the original poster very solid and very good product. It is hard to find a true 1200 watt amp now that did what that did for the price.