600RMS is not nearly enough for an RE SXif your only running the hifonics in your sig, 600w to each sub, look into Alpine Type R's, DC sound lab level 2's or level 3's, Incriminator Audio 187's, RE SE's or SX's...
what kind of box are they in? sometimes just switching subs will not be "much" of an upgrade. unless you run more power, or build a better box.
true, but still a good sub. and most of the time they are cheap as hell in the classifieds600RMS is not nearly enough for an RE SX
mtx 9515true, but still a good sub. and most of the time they are cheap as hell in the classifieds
or run 1 15" //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif