Crap that SX looks tempting. Gonna have to see what kind of deal I can get on the other amp. $400 budget for both amps...
850.4 wont really work. Im planning on bridging the 2 channels on the 850.2 to power the sub at 4ohms. Need an amp that does full power at either 1ohm or 4ohm load. Dual 2 VC's for the lose.