the super gauss design i have never heard any good #'s from 1 of the subs. i think its really pretty stupid you need big gaps because of alignment of the 2 motors. you also need a really heavy dual wound coil. and so stiff spiders to try and hold the whole thing somewhat linear. it looks good thats all. try and fit 1 in a good daily driver lol.
a cool toy is about all the design is good for..