I want a 4" coil sub with High Xmax, Low Fs and Mid Q, if someone could build one that would be great. Basically a beefier better motored version of the modern HCCA's lol. The SS XXX was an idea, but the Q is just to low and the Fs too high for it to reach the freq I'm looking to enjoy. Really need an Fs around 20-25Hz and a Qts from .4-.5
