all that filter is doing is cutting off higher frequencies.
if you set it to 100, the sub will play sound that is filtered out above that to a certain degree(depending on slope)
the less broad a spectrum of frequencies a speaker has to play, the more efficient, clear and loud they will be. by asking your sub to play tones all the way down to 30ish and up to 150...and possibly more? thats alot of strain on the sub. it will not sound good like that.
i have my sub crossed at 85.
also , a subsonic filter will raise the power handling of your sub quite a bit by not allowing it to try and play frequencies below a certain setting. humans can only hear down to 20hz anyways, so usually anything below this is filtered out.
(2)PRS-A900 / PRS-D1200SPL / GM-D7400M
High: ML28, Mid: L3SE, Low: ML 165 / Sub: (2)IDMax12 v.3 / Shaker: Buttkicker Mini
Last edited by jstoner22; 07-16-2009 at 09:25 AM.