Speaker Crackling
Posted: March 10th, 2008, 4:41 pm
Hello everyone,
Just bought a head unit and set of front door speakers, the head unit I got is a Kenwood KDC-MP635, and the speakers are Alpine SPS-17C2's. I got everything hooked up, turned on and working. However, if I turn it up past a certain level I get a horrible crackling through the speakers. So far I have ran a power line directly from the Bat. to the head unit for both the 12V constant as well as the "Ignition" connection, I also did this with a ground line straight to the negative post on the battery. All to no avail. I also attempted running wire straight from the back of the head unit to the speakers in an attempt to bypass any bad wiring in the car or a bad harness, but the crackling still persists. After I tried all this I brought the speakers inside and hooked them up to my home receiver and they sound amazing, no crackling to be heard. I also had this problem with another Kenwood receiver (KDC-MP2035). Also, I am not running an amp to these speakers, just powering from the head unit. Dirty Power? Bad Alternator? Bad HU? Anyone have any suggestions? I appreciate any input or help anyone can provide. Just a note, the MP2035 that was doing the same thing works fine in my friends truck, also, the rear channels also do the same thing and lower power speakers also have the same problem.
Just bought a head unit and set of front door speakers, the head unit I got is a Kenwood KDC-MP635, and the speakers are Alpine SPS-17C2's. I got everything hooked up, turned on and working. However, if I turn it up past a certain level I get a horrible crackling through the speakers. So far I have ran a power line directly from the Bat. to the head unit for both the 12V constant as well as the "Ignition" connection, I also did this with a ground line straight to the negative post on the battery. All to no avail. I also attempted running wire straight from the back of the head unit to the speakers in an attempt to bypass any bad wiring in the car or a bad harness, but the crackling still persists. After I tried all this I brought the speakers inside and hooked them up to my home receiver and they sound amazing, no crackling to be heard. I also had this problem with another Kenwood receiver (KDC-MP2035). Also, I am not running an amp to these speakers, just powering from the head unit. Dirty Power? Bad Alternator? Bad HU? Anyone have any suggestions? I appreciate any input or help anyone can provide. Just a note, the MP2035 that was doing the same thing works fine in my friends truck, also, the rear channels also do the same thing and lower power speakers also have the same problem.