Why Kicker? Are you shopping for amps by price, brand, power, etc??? IMO - older amps sound and perform better. There are a few exceptions to this, however most of the older amps just do a better job, are more reliable and can be found for the same price or less. As far as new amps go - I'd stick to US made products. It may just be in my head, but I think they are a better product than amps from Asia.
With some patience, the oldies can be found on ebay pretty cheap.
Some suggestions:
Xtant - 4180c (what I'm running now)
a/d/s - PH15, PS5, PQ20...um...I can't remember the rest of this generation
Rockford - pre Y2K products (look for "power" series or any amp w/X-Cards)
Kicker ZRs
PPI "Art Series" (or any of the pre-DEI amps)
Zapco - any
Soundstream - reference
I'm sure I'm missing a few... But when people look for amps and want a deal - I always suggest looking into getting some hi-end old stuff. Back then, they were all go and no show. They simply amplified - something that seems to be forgotten with many products today. And they were built to last. My old Xtant amps are about 8-9 years old and still going strong - I'm not sure if many of the newer Asian-made products can stand the test of time like these. The one exception would be the older a/d/s amps - those were hand-assembled in Japan...those kick ass!