It was a joke. I was joking. Don't fall for gimmicky shit. You can send PSI an email saying you have xxx driver, and they always reply how they can turn it into a monster, double the rms, blah blah blah. They rely on ignorant and misinformed people to stay in business. Ok thanks! are the platform 3 subs any good (Stock model) http://psicaraudio.com/products-page/platform-3-subwoofers/18%E2%80%B3-platform-3-subwoofer-2/ Seriously, forget PSI. If you want a high end sub woofer, that can take serious power, that is built here, that can have a lot of customization, done for your needs....... There is one OBVIOUS choice, and that is Fi. Makes no sense period for people to buy DC or PSI when there is Fi for that market segment.