Service manual for alpine swr-1242d car subwoofer

The subwoofer box ratings for this subwoofer are as follows:

• sealed box volume: 0.57-1.0 cu. ft.
• ported box volume: 0.75-2.0 cu. ft.

The whole manual for these specific subwoofers can be found here:

http://support.alpine-usa.com/products/documents/OM_SWR-10+12_23D_43D.pdf

I have the exact same sub, I have it running it in 2 ohm load in to my amp in a bridged mode.

I would explain it to you but would make more sense give you better idea as to what you are looking at. Here is the link:

http://a248.e.akamai.net/pix.crutchfield.com/Manuals/500/500SWR1242.PDF

Take it to a professional. They may have something to patch it.

Ported and tuned to around 37-40 hertz. After all displacement the box should be in the 2.2 cubic foot for sub and you will be very impressed. Build it yourself for optimum sound and output.

get your manual out go to a box calculating site and youll have your answer
http://www.carstereo.com/help/Articles.cfm?id=5
go here with your sub specs

Hello junebugmeza,

Getting repairs on Alpine products depends on where you are located. In the US, you may be required to ship it back to Alpine or to an authorized service center.

To obtain service, follow the procedures for "out of warranty" service here. Scroll down the page and use the drop-down box to select your location. Then call the toll-free number provided for the service center.

Hope this helps.

hook ithe sub up to a 9volt battery and see if the woofer moves... You will not dammage the suub testing it this way.

Enter Alpine car audio in your search engine and go to alpines home page and then click on support then enter in the product # SWR-1242D and it will pull up the manual.

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