I have the assasin 8s and I love them. Granted I have never heard any other 8s but these are perfect for me. Great sq and get suprisingly loud. Have them off around 750 watts for the pair.
Im sending my two 8s roughly 700 watts and they love it. I THINK the entire assassin line has the same motor so you should be good with around 300-400 clean watts.
My uncles over there in mandeville. I got my jeep tinted 20% all the way around and it was about 175 with a lifetime warranty. Id say 300 is kinda high