Re: mofo 122x with kicker zx250.1
Wrong post area unless your trying to sell.
Underpowering will not hurt the sub at all. Clipping will kill it quickly. If you underpower it, just remember to not turn up the gains to compensate for the lower wattage.
You can use the Kenwood if you wire your sub to 2 ohms (900 rms) which means you'll need a D4 or D1 sub.
HU - Kenwood KDC-HD545u
Front Stage - Stock
Rear Stage - Stock
Sub - HDC318 6cuft tuned to 35
Amp - Audiopipe 1500d
MY BUILD LOG - http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/526429-02-tahoe-aq-build.html