Sub x-over frequency
Sub x-over frequency
Just wondering where you all like to set your cross-overs at... I have a pair of 8 inch jl audio 2w3 and I cross them at 57 with a 12 db slope. I find if I go much higher, my ears hurt before I can feel it in my chest.
Right now i have an Fi Q 12inch in a ported box tuned to 32 and have my crossover set at 63 or 67 with a 24 db slope. Its punchy and pretty tight on intense drum beat nu metal like mudvayne and such, and for being ported is about as far from a fart box as it could be.
I was always a 18 or 24 db slope kind of guy but recently I'm prefering 12. Seems to make the subs sound a bit smoother. Maybe not as punchy but I think that is because the 12 slope starts the frequency dip earlier compared to the 18 or 24
After much tuning i've found the best setting for my system is 70hz, 12 db/oct lp, and 25 hz, 30 db/oct hp(infrasonic) filter. 0' phase and a slight cut at 55 hz of 3db (caused a bit or resonance at low volumes on the rear deck). I haven't touched it in a year now, and i'm very happy with the sq and output.
If i want to go crazy and really crank it up i put it to 63 but then at those level localization is not a problem anymore.
this thread had me thinking about my subsonic and proper settings. I know in a sealed box there is no need for a subsonic but on ported what is ideal? I have always assumed via some post i read awhile ago that proper subsonic should be set a few hz below tuning so for example myself i have my box tuned to 32 and subsonic set at 28 on a 18db slope.


