i did sq+ before i grew up (and detached my left eardrum).

every audio shop or build had at least one meter through it.

what good is a parametric and a DSP system if your cars not mapped out in terms of freq response.

good clean bass wuthout overamplified bands is far more enjoyable than a jewel osco parking lot job....

i melted two Hifonics via my punch power pro's (before RF sold out) the newer RF amps sucked too, i wish i had never "upgraded" from my alpine V12's