my bad, i forgot to put a link to the amp. would this amp run those? http://www.crutchfield.com/S-9E3Vou002Dm/cgi-bin/ProdView.asp?g=120&tab=review&i=500MRPM450#Tab
Yes that amp would work...but for the same price either of the Kenwoods will outperform that Alpine any day of the week. I would suggest the 9102 or 9152 over that 400 watt Alpine