yeah they are only available is single 4. so would 12 make a final load of 1 ohm or under i take it? man this is gonna cost me. at 80 apiece for 20 its just gonna be 800. then with two more possible.hmm. might have to rethink this. cause ill need to still get supplies to make the box and then more wire. ive got all the power wire. and might be getting an amp to push them for my birthday for 120 =] and then ill see if i can get someone to buy me atleast 6 for my birthday. this is gonna be tricky