Sick build man, I wish I could do something like this in my HHR but my lovely wife would not have it lol. I tried to talk her into it but it was a no go :-/ so I'm building two 12"s on 3000 RMS
I deffanitly can't wait to see (and hopefully get a demo after it's all done) keep up the great work
ive been modeling the opti line subs and the 1532d models the best with a solid flat output range from 31hz-58hz the 1535d is a close second with 33hz-56hz. the 1532d is a 4in coil rated at 1300wrms and the 1535d is a 3in coil rated at 1600wrms. the 1532d is a dual 2ohm the 1535d is a dual 1.4. if you where to get the 1532d's a single opti6000d would work well if you get the opti 1535d's a pair of opti4000d's would be good. both setups would have similar output but the 1532d's have a slightly better range and the 1535d's have better looks. the sub costs are similar but a single opti6000d would be significantly cheaper than 2-opti4000d's