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I do not like the alpin sub let alone all the speakers. but i want to replace the sub any ideas? i would like to just replace it in the same enclosement its already in.
 

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anyone know anything about JL Audio sub? We bought a used 2010 and it was already installed in it. It sounds good to us. I know we feel it in our chest. I was not really looking for something with a sub but, it was in it already so I think we did pretty good.
 

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I do not like the alpin sub let alone all the speakers. but i want to replace the sub any ideas? i would like to just replace it in the same enclosement its already in.
actually its a 6 1/2 inch
 

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anyone know anything about JL Audio sub? We bought a used 2010 and it was already installed in it. It sounds good to us. I know we feel it in our chest. I was not really looking for something with a sub but, it was in it already so I think we did pretty good.
If it sounds good to you, I would go with it. There is really no sense in changing something that works well and sounds good. JL Audio makes good quality products.
 

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I do not like the alpin sub let alone all the speakers. but i want to replace the sub any ideas? i would like to just replace it in the same enclosement its already in.

Owners with the stock 6.5" subwoofer seem to get the best results from the Kicker replacements. The subwoofer below is the recent replacement, but, I'm not sure about the 1/4" size increase. Wiring it to 1ohm impedance would probably be best.

Kicker 40CWRT672 CompRT shallow-mount 6-3/4" subwoofer with dual 2-ohm voice coils at Crutchfield.com

You might want to read this thread too.

Stock Subwoofer replacement Found!! - JeepForum.com


Edit: ^This information is for a TJ, not a JK.
 

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The drivers are 6.5 inches. The stock sub is 8 inches.
 

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You will need a spacer ring to install the sub...but that Kicker is one of 4 or 5 that are often used to replace the factory sub.

I'm leaning towards this Alpine Type R, but have not gotten around to getting one. I did get a spacer ring from ebay already however....
 

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You will need a spacer ring to install the sub...but that Kicker is one of 4 or 5 that are often used to replace the factory sub. I'm leaning towards this Alpine Type R, but have not gotten around to getting one. I did get a spacer ring from ebay already however....
what will the spacer ring do?
 

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You will need a spacer ring to install the sub...but that Kicker is one of 4 or 5 that are often used to replace the factory sub.

I'm leaning towards this Alpine Type R, but have not gotten around to getting one. I did get a spacer ring from ebay already however....
Are you talking about this one?

Alpine SWR-8D2 Type-R 8" subwoofer with dual 2-ohm voice coils at Crutchfield.com

What's needed to install this as a replacement for the factory Alpine system?

.
 

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what will the spacer ring do?
Spacer ring does two things...

It gives you something to screw the subwoofer into instead of the plastic factory enclosure. (Let's say one sub has six holes, while the other has 8 holes).

It also gives you a touch more depth so that magnet of the sub isn't up against anything inside the enclosure.
 

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Are you talking about this one?

Alpine SWR-8D2 Type-R 8" subwoofer with dual 2-ohm voice coils at Crutchfield.com

What's needed to install this as a replacement for the factory Alpine system?

.
Yup, that is the one I've been leaning towards....but never got around to buying.

That sub, along with this amp Rockford Fosgate Punch PBR300X1 Mono subwoofer amplifier — 300 watts RMS x 1 at 1 ohm at Crutchfield.com have been in my Crutchfield and Amazon carts for about a year.
 

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I build custom stereos for the river and do a lot of fiberglass work. I am going to replace my factory set up with a rockford fosgate D class amp and a 10" sub in a custom fiberglass enclosure using the factory mount only fiberglassing over it with a 10" ring. I have used a lot of different subs from fosgate alpine JBL, JL, Polk. I really like the JL's but they are pricey. If your in the market to shop I buy a lot of my equipment from sonicelectonix Car Audio Stereo - Car Subwoofers - Car Amplifiers and Speakers.

this is the fosgate amp i am going with its a D class less heat and more efficient power usage.

http://www.sonicelectronix.com/item_67758_Rockford-Fosgate-R500X1D.html

matched to this fosgate sub

http://www.sonicelectronix.com/item_33743_Rockford-Fosgate-R2D4-10.html

total price on electronics is $220
 

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I build custom stereos for the river and do a lot of fiberglass work. I am going to replace my factory set up with a rockford fosgate D class amp and a 10" sub in a custom fiberglass enclosure using the factory mount only fiberglassing over it with a 10" ring. I have used a lot of different subs from fosgate alpine JBL, JL, Polk. I really like the JL's but they are pricey. If your in the market to shop I buy a lot of my equipment from sonicelectonix Car Audio Stereo - Car Subwoofers - Car Amplifiers and Speakers.

this is the fosgate amp i am going with its a D class less heat and more efficient power usage.

Rockford Fosgate R500X1D 500W Mono Class D Prime Amplifier

matched to this fosgate sub

Rockford Fosgate PRIME R2D4-10 10" Dual 4 ohm Subwoofer

total price on electronics is $220
There is a thread on another forum where someone did exactly that. They did a homemade fiberglass mixture and opened up the factory 8' opening to a 10" opening. It was awesome.
 

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Discussion Starter #20
Spacer ring does two things... It gives you something to screw the subwoofer into instead of the plastic factory enclosure. (Let's say one sub has six holes, while the other has 8 holes). It also gives you a touch more depth so that magnet of the sub isn't up against anything inside the enclosure.
could you attach a link to a spacer ring?
 
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