I am installing a 2-way active + sub system in a 2007 Civic sedan. Power will be provided by a single 5 channel Kicker ZX700.5 (sub channel is rated at 280 @4ohm / 420 @ 2ohm - under rated per reviews and birth sheets). Head unit is 880PRS. I certainly have enough power to run a X12, but is this even remotely viable for an SSD in a sealed enclosure? As I would like to stick with 5ch amp, my pother choice is a Polk Audio PA1100.5 which is 1ohm stable and can produce 600 watts (not sure about actual output on this model). Keep in mind my goals are to have better than stock sound and my musical tasted run from jazz, to classic rock, punk, salsa, electronic, hip hop, etc. I guess I am wondering if the X will be enough? For comparison I was considering the Alpine 1242D (cheap, good reviews), and Dayton Ref 12HF (lower power handling SQ driver, good reviews). Thanks in advance for your input.