If you don't want to strain your electrical, find something that gives you the power at 2ohm. Running at 1ohm is more strain. Moreover, most of the budget priced amplifiers do not do their rated output at 1ohm. I'd take a look at Alpine MRX-M110 or Soundstream TN1.1200D (the MRX-M110 is actually internally a 2-channel bridged, so it's not the easiest load for electrical when running at 2ohm, but it does its rated power with some change).