I've used two of them a four ch. and a class d. Is it safe to assume you are getting the 1600a that's the one i have I love it so far. and I got it for $160 so for the price it's a really good buy I have had no problems with it at all and it sounds great with my se 10
thier amps are kick azz i ran them to death but thier not dead and still going strong. get the 1600 a thing hits hard as fuuuuuuuck. the older ones run just as bad azz.
hmm im not a huge infinity amp fan. ive had problems wen i ran the 611a. they tend to over heat, and go out. i know im not happy with them there is better out there for the money. and im almost positive they dont under rate their amps. the only infinity products i was happy with was the kappa comps and the kappa perfect subs, had prettty good SQ.