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Old 02-13-2012, 12:00 PM   #181
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Does the fill get in the way of the hard top screws or threading spider web balls?

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Old 02-13-2012, 12:13 PM   #182
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Shouldn't get in the way of anything. It's like a cotton stuffed pillow. Just push it into the cracks, loosely packing it. Doesn't have to be in there hard or anything. Just as long as it deadens the wave, you're in for a bigger and richer sound.

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Old 02-21-2012, 05:09 PM   #183
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has anyone tried the factory sub in the center consol? i jsut removed mine cuz it was blown so i wanted to know if i should fill it or not.
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Old 02-21-2012, 09:25 PM   #184
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So I stuffed my sub box and sounds great.... then my wife asked where the pillow at that was in the closet (that has not left the closet in 3 years) she is good
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Old 02-22-2012, 07:52 PM   #185
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Originally Posted by Hatt-Attack View Post
What do you guys think about using spray in foam filler (like "Great Stuff" from Ace Hardware) instead of Poly Fill? I'm thinking of going this route, but since it will be very permanent thought wise to ask. Great Thead, sound quality has been one gripe all along and it's sounding easilty remedied.
This is late, but definitely do not use great stuff. It will do the opposite of what you want. As someone else said, the poly fill makes the enclosure seem larger to the speaker's back wave by slowing down the sound waves because the poly fill allows the air to move through it. I'm pretty sure foam in a can is made to stop air moving through it so it will make the enclosure seem smaller.
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Old 02-23-2012, 11:29 PM   #186
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Official 2012 JKU Rubicon Poly Stuff Results

After my 9MO grandson starred at the overhead speakers with a "what's wrong with those things" look on his face, I said OK, I saw a thread somewhere....

So I find it and reluctantly, after being a pioneer in the car audio industry, I knew stuffing a speaker in a goofy shaped plastic enclosure can't be very good ( as my grandson pointed out and I already felt guilty exposing him to such hideous distorted noise) and said WTH, I'll give some insulation a try.

I go to the material/craft/old ladies everywhere store and found the EXACT poly-fill on page one (or where ever it was) and thought "if 12oz of the stuff is great, 24 oz has to be twice as good", right???

So I spend the $10.99 and tax (phew) and headed back to the garage where I surely would put a smile on this little rug rat once I finished up this little project.

I yank 3 screws and out falls this round object that resembled a speaker. It appeared to be a rather high efficiency model and obviously impossible to reproduce any high frequency. Im talking a speaker that has a response oh maybe 200hz up to, say 300hz - tops.

With double the reluctance now I really thought I might be better off returning my $10.99 purchase and just give the kid an old iPod, one of many in the drawer, but how was I going to stop him from trying to eat the earpieces??? What was I going to tell his mother when she finds bits of wire in his poop???

So I start stuffing and as much extra room thats in those overheads, I'll never use 24oz of the stuff. Guess 24oz wasn't worth twice 12oz in this case. perhaps I can use is to mop up oil or mix it in w/the kitty litter.

I get the 2nd speaker done (how any respectable speaker company could put their name on these things is way beyond me, but there it was "Infinity" plastered on the back of this sad excuse of a speaker) and figured I gotz plenty of the stuff, lets do the sub, make what little hair this kid has, stand up on it's own, he's sure to get a kick outta that trick!!!. This is gonna be great!!!

I fire it up alone first, wanted to make sure the back pressure from this mod wouldn't be harmful to the little squirt, I mean, again, how would I explain to his mom, why the kid suddenly appeared deaf???

I fire up some good old classic R&R, twist on the knob after strategically placing my dairy-aire centered in the back seat (man this thing needs a remote) while preparing my mollers for the treat of a lifetime and get....

Nothing. zip, zero zilch difference. 200-300hz at it's finest. I shoulda returned the poly stuff after my first gut feeling. I think I mighta felt a little more boom (if that's what you want to call it). I now understand why Chrysler/Infinity whomever is responsible for this tragedy, that even a, not even one YO says "<coc violation>" AND he don't even know what that means, didn't install this poly fill to begin with!!!

I ran to best buy to throw good money after bad because, after 40 years, I WILL find an answer!!!

I found myself looking for the most efficient over the counter (read, small magnet floppy cone) co-axial speaker because I already know, I better chase more frequency response because thats about all this thing might deliver somewhere.

So I install the fancy dancy Pioneer co-axe's with a whopping (perhaps) 200gram magnets for about $35.

It is much brighter now, there isn't enough horsepower to make even these monsters move much, so don't expect any low frequency response that you can actually hear.

I see my grandson learned to shrug while he sits back, not looking at the speakers with a goofy look on his face so it must be an improvement.

No offense but save your $10.99 and go spend $35, that is where your bang for the buck's at (don't bother spending $75 or $100, you WILL be faced with diminishing returns w/this POS Infinity stuff still sitting in the dash and no power).
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Old 02-24-2012, 11:28 AM   #187
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Added Poly-Fil to my sound bar last weekend and I must say it was a nice improvement. Volume has increased along with improved midrange and bass.
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Old 02-25-2012, 12:13 AM   #188
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Like most things, it's who you ask. I'm filling the sound bar/woofer Saturday. Do I expect chariots and angels? No. Just looking to improve on a mass market sound system which isn't too bad. There is a lot of complaining about OEM systems but the stock system is fine (sound bar w/slight thumper). I may have to check my calendar, but J-lo has yet to schedule a recording appointment in my JK, although I wouldn't mind if she did. OEM sounds much better than my Harley-Davidson not to mention my 1975 Honda Civic CVCC, back in the day. Save the hate-er-aide; I don't care and anyone as old as me shouldn't either. You're really fretting over sound in a 4wd vehicle? Silly.
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Old 02-25-2012, 10:50 AM   #189
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Filled mine last weekend, one less pillow in the world...still too many in my house but.... Nice improvement not great but much better. Good enough for me at least right now. As long as I can hear it over the wind when the top and doors are off this spring I'll be happy.
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Old 02-27-2012, 08:17 AM   #190
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Did mine Sunday. Notice a slight difference. A little less muddy boom, but nothing major. Pretty much what I expected. I bought a 12oz bag of poly fill at Wal Mart of all places for about 3 bucks IIRC and had a little bit left after doing the soundbar and sub.


I was surprised at how little sound comes out of the soundbar speakers though. This is a 2012 Unlimited Sahara. Adjusting the fade all the way back toward the rear is a real eye opener! I guess I need to look into the kicker amp or something as there is a ton of room for improvement.
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Old 02-27-2012, 08:21 AM   #191
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Quote:
Originally Posted by Sherifftruman
Did mine Sunday. Notice a slight difference. A little less muddy boom, but nothing major. Pretty much what I expected. I bought a 12oz bag of poly fill at Wal Mart of all places for about 3 bucks IIRC and had a little bit left after doing the soundbar and sub.

I was surprised at how little sound comes out of the soundbar speakers though. This is a 2012 Unlimited Sahara. Adjusting the fade all the way back toward the rear is a real eye opener! I guess I need to look into the kicker amp or something as there is a ton of room for improvement.
Pretty sure its the head unit that limits power to those rear speakers.
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Old 02-27-2012, 10:12 AM   #192
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I have the upgraded Infinity system and after hearing how poor the soundbar speakers were, I went out and bought a bag of Polyfil ($6) and a set of Polk 6.5 2 ways ($75 @ Bestbuy).
I did both at the same time. The only improvement I noticed was it sounded much clearer and the soundbar actually has some treble now (I assume due to the speaker upgrade) but it didn't sound any louder. In fact, when you set the speakers to only play from the rear, It has no punch whatsoever, and it's REALLY quiet compared to the front. I also stuffed the sub with Polyfil and this made a dramatic improvement IMO. The bass is now much tighter. The combination of all 3 simple fixes is an all around better sound for minimal $.
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Old 02-27-2012, 07:19 PM   #193
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So I did the Poly-fil and KICK10s in the sound bar and didn't notice much improvement, however, I stuffed the subwoofer and I can actually FEEL it moving air now. Waaay improved. I should have just done that first!

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Old 02-28-2012, 10:50 AM   #194
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Adding pollyfill isn't going to make poor speakers sound great or even good speakers sound amazing... what it does is it slows down the movement of the sound waves in the enclosure helping to eliminate the hollow sound that an empty box would cause. It also fools the speaker into thinking that it is in a larger encloser. There will be no effect at the 200-300 hrz range, it will however improve the lower (bass) end of the spectrum. I would also recommend sealing the space around the speaker itself to prevent air from freely flowing out of the box.

Someone mentioned polly fill in the dash... I prefer these.


You can get them on Ebay for about $10
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Old 02-28-2012, 11:31 AM   #195
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I got the DEI/Boom Mat version of those for the dash pods. Should be here today.

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Old 02-28-2012, 12:51 PM   #196
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How do you take the dash speakers out in a 2012?
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Old 02-28-2012, 02:06 PM   #197
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I poly-filled the rear speakers and unfortunately I didnt notice a difference.
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Old 02-29-2012, 06:41 AM   #198
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Did this at the weekend to the sound bar speakers and the sub in my 2011 JKU, I am no expert and don't really want a traveling disco but the improvement in the sound was dramatic. There seems to be a lot more base.

Can someone tell me how to get into the front speaker boxes to do the same?
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Old 02-29-2012, 07:11 AM   #199
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I've read all 7 pages and am not convinced. Some people hear a dramatic difference and some get nothing. Is it just the sub making the difference? I don't have a sub so I wouldn't want to waste my time if it won't make a difference. If anything, I'm leaning toward adding the speaker baffles to the speakers in the soundbar.
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Old 02-29-2012, 07:16 AM   #200
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I've read all 7 pages and am not convinced. Some people hear a dramatic difference and some get nothing. Is it just the sub making the difference? I don't have a sub so I wouldn't want to waste my time if it won't make a difference. If anything, I'm leaning toward adding the speaker baffles to the speakers in the soundbar.
i'm with you.... i was just talking to the old lady about this last night. was thinking of giving it a go this weekend. we have some old pillows lying around the house...

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Old 02-29-2012, 10:46 AM   #201
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Can it be any old pillow?
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Old 02-29-2012, 10:52 AM   #202
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Can it be any old pillow?
I'd make sure it was one with polyfill, not an old down or fake "down" feather one.

I certainly used some old ones
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Old 02-29-2012, 11:02 AM   #203
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I've read all 7 pages and am not convinced. Some people hear a dramatic difference and some get nothing. Is it just the sub making the difference? I don't have a sub so I wouldn't want to waste my time if it won't make a difference. If anything, I'm leaning toward adding the speaker baffles to the speakers in the soundbar.
Let's just say that the pro's have been using poly fill before I even had a car.
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Old 02-29-2012, 11:11 AM   #204
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I've read all 7 pages and am not convinced. Some people hear a dramatic difference and some get nothing. Is it just the sub making the difference? I don't have a sub so I wouldn't want to waste my time if it won't make a difference. If anything, I'm leaning toward adding the speaker baffles to the speakers in the soundbar.
I did it on both a 2-door and a 4-door. The 2-door had a noticeable difference and the 4-door hardly anything at all. That may be a reason for the mixed reviews.
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Old 02-29-2012, 11:12 AM   #205
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I'd make sure it was one with polyfill, not an old down or fake "down" feather one.

I certainly used some old ones
good to know. thanks!

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Old 02-29-2012, 11:14 AM   #206
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We got a bag of the polyfill that looked like the angle hair stuff, we did the sound-bar
and the sub, we do hear more sound from the sound bar and they wife who has
better hearing than me does hear the sub working more.

Went to Best Buy yesterday and they did not have any of the Polks that were on sale.
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Old 02-29-2012, 11:17 AM   #207
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I did it on both a 2-door and a 4-door. The 2-door had a noticeable difference and the 4-door hardly anything at all. That may be a reason for the mixed reviews.
Thanks. I didn't take that into consideration as I was reading. Im undecided whether to try poly fill or the baffles.
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Old 02-29-2012, 11:46 AM   #208
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Thanks. I didn't take that into consideration as I was reading. Im undecided whether to try poly fill or the baffles.
I'm thinking that logically the baffles if rigid enough should work better, but that doesn't stop me from wondering what would happen if both were done.
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Old 02-29-2012, 11:59 AM   #209
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I'm thinking that logically the baffles if rigid enough should work better, but that doesn't stop me from wondering what would happen if both were done.
Great, something else for me to think about.
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Old 02-29-2012, 12:06 PM   #210
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i got a 2 door with no sub...It did make a difference...little more rich sound...all in all, glad i did it

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