Well i already have one ap3k that I got for cheap, want another for my dual 2ohm woofer....don't want to shell out 500/600 whatever on 5kw @ 1ohm amp. Rather run two ap3k not full tilt and get the 4kw+ ish I want without stressing the amps much daily. Will have (2) d3100's, dual 1/0 all around, and my 240amp alty.