Subwoofer repair - Chevy Impala SS Forum
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post #1 of 16 (permalink) Old 01-25-2015, 01:28 PM Thread Starter
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Subwoofer repair

Hey guys. So I just realized that my JL W7 12" sub's surround foam has ripped due to the heat (I'm assuming heat because I didn't rip it).

It's ripped about 5". I was wondering if there is something I can use to repair this? I can't afford another sub right now (and I don't want to be without one!) The sub still works, but I'm assuming that this rip isn't good for it.

Thanks in advance.

Corey
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post #2 of 16 (permalink) Old 01-25-2015, 02:14 PM
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http://www.amazon.com/Audio-Speaker-Repair-Extra-FSK-12JL-W7-1/dp/B009DNMUZI

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post #3 of 16 (permalink) Old 01-25-2015, 04:39 PM Thread Starter
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Woah, didn't see that coming. Sweet, I appreciate it.
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post #4 of 16 (permalink) Old 01-26-2015, 11:54 AM
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Quote:
Originally Posted by awmyfreaknhead View Post
Woah, didn't see that coming. Sweet, I appreciate it.
No problem. Take some pics, and let us know how it goes.

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post #5 of 16 (permalink) Old 01-26-2015, 12:55 PM
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one of the best sources of refoam kits is Orange County Speaker.
not going to be cheaper but the kit quality is much better if thats important.

http://www.speakerrepair.com/page/ca...edge_kits.html

they sell kits for many brands, I redid my cerwin vega home speakers several years ago and they came out great.

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post #6 of 16 (permalink) Old 02-15-2015, 04:47 PM Thread Starter
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Hey guys.

So I repaired my subwoofer. Followed the steps, seemed pretty straight forward... I believe I did everything correctly. It looks good.

*Quick back story - I used to have (2) 12" JL W7 subs in my car. I had (1) 1000/1 amp powering them. I took one sub out and sold it, kept the same box but I just built a new front for one sub rather than two.

So after pulling my sub to fix the surround foam, I decided to build a new box for (1) 12"W7 according to the JL specs, which I did.

Then I called JL and told them what I had and told me what settings to set my amp to.

All installed, here comes the test... ummm.... I can hear the sub hitting, but putting off base like a mid-range speaker. I thought maybe I mixed up the + and -, so I switched those and it actually hit a little harder, but nothing like it is supposed to.

I haven't really messed with the amp settings (I kinda forgot how they were set before). I remember the JL guy told me no more than 3 on base boost. I remember before it was a lot higher than that, but I don't think that that is the problem. I'm nervous cause it sounds like a blown speaker, but it was working perfect before (even with a torn surround) and I did not damage it at all during the surround repair.

Any ideas on how to troubleshoot? Can I mess with all the settings while the radio is on? I don't want to have to take it to a car audio shop :/
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post #7 of 16 (permalink) Old 02-15-2015, 04:50 PM
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What is the RMS of the W7.
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post #8 of 16 (permalink) Old 02-15-2015, 04:54 PM Thread Starter
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I'm sorry, RMS?
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post #9 of 16 (permalink) Old 02-15-2015, 05:00 PM
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Yes RMS is what they are designed to run with. 800 watt @ 3 ohm resistance would be what I'm looking for.
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post #10 of 16 (permalink) Old 02-15-2015, 05:02 PM Thread Starter
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Gotcha. JL says 400-1000 watts, but 750 watts is optimal at 3 ohms.
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