Subwoofer in a JK - JeepForum.com
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post #1 of 74 Old 05-11-2008, 01:43 AM Thread Starter
YetiTJ
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Subwoofer in a JK

This is my first write up, so I apologize if it sucks. I have been looking for the right subwoofer solution for me for a while. It seems like to get good sound you have to give up your cargo space. Well I refuse to compromise. I wanted to have cargo room, and still have the locking storage usable in the back. My jeep is a 2 door, but it should work on a unlim. too.

OK enough jibba-jabba. I bought a P3L-S12 by Rockford Fosgate at my local Best Buy. It is a loaded slim box with a 12" P3 woofer. This thing rocked loud wide open in the store and is less than 6" thick. I got the idea from a stealth pod to mount it to the tail gate. I am sure that another downfire setup would rock harder but I promise this smokes the factory sub, and the basslink etc. There isn't much to explain, so I will show you what I did. I have less than 50 posts so maybe someone will no clicky the pics. thanks if you do.

I got some L-shape brackets from Lowe's and some body screws and attached them to the gate with foam behind them.

(they are level and straight. the angle is an illusion)

then I bolted the sub to them and attached the side brackets that came with the sub. ( i made some spacers out of plastic to fit better)


thats it. pretty easy. I had a hard time drilling the tail gate but I am so glad I did it looks and sounds great.

here you can see it installed:

the carpet isn't as dark as it looks in the pics


Sorry if no one is interested in doing this, I just thought I would share.


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post #2 of 74 Old 05-11-2008, 04:18 AM
Big A
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Quote:
Originally Posted by YetiTJ View Post
This is my first write up, so I apologize if it sucks. I have been looking for the right subwoofer solution for me for a while. It seems like to get good sound you have to give up your cargo space. Well I refuse to compromise. I wanted to have cargo room, and still have the locking storage usable in the back. My jeep is a 2 door, but it should work on a unlim. too.

OK enough jibba-jabba. I bought a P3L-S12 by Rockford Fosgate at my local Best Buy. It is a loaded slim box with a 12" P3 woofer. This thing rocked loud wide open in the store and is less than 6" thick. I got the idea from a stealth pod to mount it to the tail gate. I am sure that another downfire setup would rock harder but I promise this smokes the factory sub, and the basslink etc. There isn't much to explain, so I will show you what I did. I have less than 50 posts so maybe someone will no clicky the pics. thanks if you do.

I got some L-shape brackets from Lowe's and some body screws and attached them to the gate with foam behind them.

(they are level and straight. the angle is an illusion)

then I bolted the sub to them and attached the side brackets that came with the sub. ( i made some spacers out of plastic to fit better)


thats it. pretty easy. I had a hard time drilling the tail gate but I am so glad I did it looks and sounds great.

here you can see it installed:

the carpet isn't as dark as it looks in the pics


Sorry if no one is interested in doing this, I just thought I would share.
I like it!

How is the Frequency Response? Judging the size of the box, And sealed, I am guessing that 45hz is the resonate freq.

Please show pictures of your amp rack, Head unit ect.

Thanks!
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post #3 of 74 Old 05-11-2008, 04:29 AM
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post #4 of 74 Old 05-11-2008, 08:33 AM
wrnglrguy
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That's freakin' nice. Good job!
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post #5 of 74 Old 05-11-2008, 08:47 AM
gunnersmac
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I like it, and think it looks great. I would also like to see some additional pics of your set up... head unit, amp, etc.
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post #6 of 74 Old 05-11-2008, 03:58 PM Thread Starter
YetiTJ
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Thanks for the kind words everyone. I still am running the factory head unit, and front speakers. I am soon replacing it with a navi unit, but I haven't decided which one yet. Some of you may have seen my double din eclipse navi in my TJ I showed in the TJ forums. My g/f works for the jeep dealer so I think I have a line on a good deal on a MyGig but I dunno yet. I have some crossfire 6.5" I am putting in the soundbar to clean that sound up a little, but it is not a direct screw in like on the TJs. I am planning on fabbing up some sort of adapter rings later this week if I can't find any pre-made ones. The sub amp is an older 600 watt kicker unit that has lived in my closet for too long. I refuse to replace it because it pushes a retarded amount of power.... it does pull some amperage though. I am going to post some more pics I took of the box in daylight after my girl gets home and shows me where she put the camera cable. What head units are you guys running? any using a MyGig as a HU? thanks again.

Here are some specs on that loaded sub enclosure:

Woofer Quantity 1
Woofer Size 12"
Woofer Series Punch Stage 3 Shallow
Woofer Impedance (ea) 2-Ohm x 2 DVC
Power Handling 400 Watts RMS/800 Watts Max
System Configuration Sealed
Enclosure Material 1/2" MDF (Medium Density Fiberboard)
Speaker Connector Up To 12 AWG Binding Post
Dimensions H 13.5" x W 27.37" x D 5.25-3.25" (34.3cm x 69.5cm x 13.3cm-8.3cm)
Internal box volume (ft3/liter) 0.60 (16.99L)

(p.s. if anyone buys one of these it requires a long break in period of 24-48 hours of play time because of the suspension design I believe... best buy isn't going to mention it)

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post #7 of 74 Old 05-11-2008, 11:34 PM Thread Starter
YetiTJ
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here are some day shots:








here it is before I plugged it in. notice that it clears the latch on the floor:

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post #8 of 74 Old 05-12-2008, 10:03 PM
rballman
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This rocks! Nice work. Does the door rattle any or does the foam work pretty well? Can you send some picks of where you have the amp. Do you only plug the sub in when the door is closed I am assuming?
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post #9 of 74 Old 05-12-2008, 10:42 PM Thread Starter
YetiTJ
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Originally Posted by rballman View Post
This rocks! Nice work. Does the door rattle any or does the foam work pretty well? Can you send some picks of where you have the amp. Do you only plug the sub in when the door is closed I am assuming?
Thanks! I have it plugged in all the time although it isn't plugged in the photos. The cable is run through the factory wire-sleeve/door-catch thing and behind the box. It does vibrate a little at the plastic grill thing to the right of the box. I am getting some dynamat to put in it, and I think it will be ok.

The kicker amp is pretty big but i took the vanity cover thing that hides the wires on the sides and whatnot off and put it under the driver seat. I am working on a plate that bolts the amp to the seat frame keeping it off the floor. Heat is not a problem (the unit uses a fan to help cooling) and it is only turned up to like 1 out of 12. I will take some pics later this week after I finish the amp brackets. I wanted to mount it under the dash or somewhere similar but couldnt find enough room.

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post #10 of 74 Old 05-13-2008, 12:13 AM
Warlord2
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looking good. heres mine


got no vibs ever sense I put my spare on.

07 JK 2D X model with 6 speeds. Full Traction 3" ultimate lift kit. 315x75x16 Toyo Open Country M/T on Rock crawler procomp rim. Ruby dana44's front sleeved inside/outside C truss and rear with 5.13's gears. Homemade rock guards, rear bumper w/tire carrier, oilpan/tranny skid, evap canister skid, light bar, switch pod. Riddler diff covers, Cobra 75 w/wilson antenna, Polk speakers, 10" sub, 2x Amps, Lightforce 240 drive light, backup lights, rock lights.
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post #11 of 74 Old 05-13-2008, 01:15 AM Thread Starter
YetiTJ
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Quote:
Originally Posted by Warlord2 View Post
looking good. heres mine


got no vibs ever sense I put my spare on.
very nice!!! what size sub is that?

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post #12 of 74 Old 05-18-2008, 10:23 PM Thread Starter
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Quote:
Originally Posted by gunnersmac View Post
I like it, and think it looks great. I would also like to see some additional pics of your set up... head unit, amp, etc.
I couldn't stand that detuned factory radio anymore. Unfortunately I didn't have the cash to run out and grab an eclipse head unit. So I pulled out the old Pioneer DEH-P6300 I had collecting dust in the closet. I got to tell you I am not crazy about how this old beast looks, but I forgot how great the sound is. It has pretty decent crossovers and parametric equalizers. The background scenes are cheesy, but it even has sound focus EQ. I think I am going to use it for a while and put my money into other upgrades.

I also upgraded the soundbar speakers with some crossfire 2 way 6.5" They sound 100% better. Just changing the deck and those 2 speakers was like night and day difference.

I am going to build some type of amp "rack" mount under the driver seat tomorrow. I will post pics tomorrow night.

Here is the deck for those that dont remember it.

Notice the cheesy animation. lol.

Here are the crossfires. The new 3 prong factory mount design is a pain in the *** and requires an adapter.

The speaker looks purple, but it isn't. Model is RS62. The dash is soon getting the component set by crossfire called X6.

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post #13 of 74 Old 05-19-2008, 02:18 PM
eman1966
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I actually don't mind the sound system I have. I would like to relocate the subwoofer, maybe move it up higher. Anyone try this?

2007 Jeep Wrangler Sahara Unlimited
2 1/2" Rough Country Suspension Lift
35" Nitto Terra Grapplers AT
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post #14 of 74 Old 05-19-2008, 07:49 PM
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can u hook up a aftermarket subwoofer to the stock deck?

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post #15 of 74 Old 05-19-2008, 10:13 PM Thread Starter
YetiTJ
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Quote:
Originally Posted by eman1966 View Post
I actually don't mind the sound system I have. I would like to relocate the subwoofer, maybe move it up higher. Anyone try this?
yeah I saw someone put it with the bottom at the fender well. http://www.jk-forum.com/showthread.php?t=5249
there it is. if you have a soft top it wont work i think.

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