if you have a Kicker CVR, i wouldn't even give it one watt over rated RMS. Personally, i would sell the Kicker and look at the caraudio.com classifieds. all of my equipment is used and i couldn't be happier with it... i also probably saved about 60% off of retail if i were to buy them new.
i disagree with REDz28 when he suggests a Hifonics amp.. if you can come across one of the older models, then go for it. but as far as the newer ones go, i'd stay away.
the Kicker CVR can get low in the right enclosure, but better can be had for the money. there's a reason why i **** talk Kicker in threads where they are brought up. I've never run one but have plenty of friends who have... they think it sounds great, but they've obviously never heard anything else. They want bass just to rattle their car, not to listen to music.