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Old 02-25-2012, 08:20 PM   #1
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Another subwoofer question

Newbie here. I have a 2005 Wrangler Unlimited with a center console subwoofer. I blew the one that came with it when I bought it used, and on the advice of the users here, bought the Pyramid and replaced it following the instructions in this thread. It sounded great and was very cost effective. However, it stopped working a few months later. I finally got around to pulling the console out, and there was not obvious physical damage to the speaker or its cone.

I separated the circuit board from the console and took the sub assembly, from wiring harness to speaker, to my home stereo to test the speaker. It works fine, sounds better than ever, which leads me to believe the problem is in the crossover, or whatever function the circuit board is performing. There is also no visible damage to the board.

If anybody can help with either of these questions I'll be grateful:
1) What does that circuit board do?
2) Why so many wires running through the harness to the board? There are 11 (yellow, navy pink/black, orange, green/black, purple, light blue, peach, tan, green, white) running from the harness to the board and four (red, black, gray, brown) running out of the board to the sub. The gray and brown are terminated inline while the red and black attach to the speaker. Whether the harness is plugged into the circuit board or not has no effect on the dash or sound bar speakers. So WHY SO MANY WIRES?!?

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Old 02-26-2012, 12:24 AM   #2
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you can get a line level output converter and an amp to power the sub seeing that the sub is working. the converter splices into the speaker wires and converts them into a set of rca outputs to run to an amp. with an amp the replacement sub will sound 1000 times better than off the factory amp.
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