i would trade my two 15'' kickers solo baric in for two 15'' cerwin vega HED subwoofers anytime, a 50x4 try a lil more power for those 3-way 6x9's:cool:
yo the guy above is right .. but if you dont change your head unit you better get a dang good crossover, reason for that is, some factory steros wont let enough power get to the sub then what you want....