I just installed my new 15" Re SX last week and im having trouble tunning it. It doesnt hit hard until the real low notes in the song, on those its loud as he11. I runnin it with a JL 1000/1..... all those settings on that amp are givin me a headache
what size box do you have? if its ported, what is it tuned to? what vehicle is this in?
set the low pass filter (LPF) to ~80hz...set the gain w/ a multimeter as discribed in your manual. set your subsonic filter just a little lower than your box tuning.