Ok thanks guys. The 13TW5 only comes in a 3ohm. So I am already locked in. I thought the RSD500.4 had a dual power supply design?

I am kicking around the Idea of buying one of these RSD500.4 Amps. I am planning on running the front channels stereo and the rear channels bridged to a JL 13TW5 - 3ohm. Will this run the bridged rear channels @ 1.5ohm? Can this amp handle the 1.5ohm load? What would the power output be on the brid...