External Low Pass Filter?

SweatyOgre Bronze Member Username: Sweatyogre PA USA Post Number: 56 Registered: Mar-06	Posted on Monday, April 17, 2006 - 03:09 GMT I want to keep the high frequencies from coming through my sub, but my amp is old and only has a gain control, no filters. Is there some kind of external low pass filter I can use?
Brandon Gold Member Username: Theelfkeeper Stockbridge, GA USA Post Number: 1767 Registered: Feb-05	Posted on Monday, April 17, 2006 - 10:59 GMT don't have filters on your HU??
SweatyOgre Bronze Member Username: Sweatyogre PA USA Post Number: 57 Registered: Mar-06	Posted on Monday, April 17, 2006 - 15:45 GMT Yes, but they affect my door speakers and my sub. So if I lower the treble all the way, there will be no treble from my sub or my 6x8s in my doors.