how can they be really nice for sql and spl, if u need to turn it down to have sql? anything can have good sq at a low level (even solox and hcca's). don't do a bass knob, they're worthless. set it up to how you like it, and want to listen to it, and then leave it alonedigital designs subs are really nice for SQL & SPL.if you get a bass knob you'll have the best of both worlds by you can adjust the bass knob to have SPL or turn it down for SQ daily driving.
