Ron Doyle
I'm not certain if you know about class D Mono amps, but all class d mono amps are 2ohm mono stable. Every manufactor makes one these days. In my earlier post with the examples of amps, look at the stats. for example: the MTX is 1500W X 1 @2ohms. That amp would probably be his most bang for the buck since the difference between the absolute best sub amp sound and the worst isn't that noticeable. The MTX or any of the others that I showed are FAR from the worst. Just thought I would let you know.