The JL amps get pretty hot in my experience. Pretty sure the wetsounds amps have built in fans, and I never had one overheat.
I know sitting in budmanv24s x1 with his 900/5 amp gets really hot at about half volume for a little while. The clip fans would help for sure if you overheat them
2011 X25-Wetsounds galore, GoSurfAssist equipped!