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Repairing the Kenwood KSC-W800 Subwoofer

Massive base distortion . . . that's what I've been listening to the past week. At first, I didn't realize that's what I was hearing. I just thought my music sounded strange. Then I realized that my subwoofer must have blown. So I pulled the Kenwood KSC-W800 8" Subwoofer Tube out of my trunk and disassembled the housing. Sure enough, the treated form surround on the speaker teared (see photo below). It had been in three of my cars during the past eleven years. The tear was probably from normal wear and tear.

Attached Image:

Woofer Surround Tear.JPG

Chieh Cheng
Tue, 29 Jan 2008 22:20:06 +0000

Although performance was decent, the factory woofer looked rather boring. I had wanted to replace it with a flamboyant woofer with a heavy-duty rubber surround. Now seemed like a good time for the replacement.

But before getting a replacement, I wanted to see what does it take to repair or replace the factory woofer. I got the party number off the back off the woofer:


Searching with these strings yields a few results on "T10058505". There are parts and replacement speakers in Europe. Costs are not cheap. There goes that option.

Next, I looked up replacement surrounds and speaker repair. A pair of form surrounds in a repair kit costs $30. The advantage is that you retain the performance of the factory woofer.

On the other hand, I could get new woofers for around that price on Amazon. So I'm willing to forgo DIY repairs, which is a bit of work. Buying a new woofer isn't as easy as matching the physical dimension. It require matching the performance characteristic of the woofer to the performance characteristic of the subwoofer box (i.e. air volume, box material and thickness, etc). But for $30, I think I'm willing to take a risk and try a different woofer. I'll keep you posted.

Attached Image:

Kenwood T10-0585-05.JPG

Chieh Cheng
Tue, 29 Jan 2008 22:56:51 +0000

I just ordered the Legacy LWF8X 8" Woofer from Etronics through Amazon (see "Related Links" below for informational links). I will post with results when the woofer arrives.

Chieh Cheng
Wed, 30 Jan 2008 06:47:30 +0000

The Legacy LWF8X 8" Woofer arrived a week ago. It's got an awesome-looking rubber surround. I pealed off the foam damper on the mounting bracket, then drilled two holes to match the screw mount on the Kenwood KSC-W800 tube.

After reassembling the subwoofer, I placed it back in my car and listened to my favorite techno. It didn't sound very good at first. But after adjusting the amplifier gain control, it was just marvelous.

Attached Image:

Legacy LWF8X Woofer.JPG

Chieh Cheng
Tue, 19 Feb 2008 09:23:23 +0000

I also have a Kenwood KSC-W800, I hooked it up today to my Fosgate amp and blew the surround completly out of the speaker lol. So, I happen to have an MTX Thunder 5500 in my closet (doesnt everyone) and fit it into the tube with minor alterations. After about 20 minutes work, I had the new sub pounding away sounding MUCH better than it did new with the cheap little speaker they used in these tubes. I am very pleased with the sound it now has, but my neighbors may not agree...

Sun, 17 Jun 2012 09:20:31 +0400

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