View Full Version : JL Sub Distortion Question

06-10-2012, 10:52 PM
I have a new to me 09 X7 with 85 hours on it. The sub sounds terrible if there is any bass turned up on the head unit. It sounds very distorted. Also one of the JL's by the back seat just buzzes. Cause I'm not a stereo expert by any means so I ask the question... Did the previous owner thrash the system and blow those 2 speakers? All the rest sound good. It has 2 tower speakers and 2 in the bow and the rears. It is just the sub and one of the rear that is giving me problems.


06-11-2012, 12:45 AM
If its anything like my sub it is a free air sub and it won't handle the newer style of Hip hop where everything has a ton of bongy bass without folding like a paper hat. As far as the buzzing speaker have you checked connections to make sure they are not off or grounding out? If your not sure try checking the connections to the back of the speaker and then try giggling the wires behind the deck and see if it affects anything. If you get a response then you know its in the wiring and somethings not insulated properly or barely plugged in. Try swapping with another speaker and see if the issue goes away. narrow it down to the speaker or the leads or the head unit.