yeah, i have 2 12 wild beasts , they are incredible i had them running off a d300hc mmats amp. two words mothertruckin loud they handle everything ive thrown at them and they keep slammin, i have them in an old lesabre , and they hit 148 with no eq, or extra battery. there is also no modifications done to the car to give me a better bass response
i have never heard them myself but at the flea market near my house some guy sells audio and he sells all cadence and he told us some guy with his beasts in a comp hit in the 170's