Replaced the busted pioneer door subs on my car with these. Wanted to go back to kicker and this is what the salesman recommended with the amp I already installed. Paired them with a Crossfire C5 12" sub hooked up to a bos 2400 watt Riot Series amp. Needless to say it kicks! The whole car shakes with the sound system now and you can really feel the bass in your chest.