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Old 02-13-2013, 05:45 PM   #1
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Join Date: Jan 2013
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How to seriously upgrade 430N and retain stock look

Here is a full shopping list and final total for how I seriously upgraded the 430N "premium" sound system in my 2013 JKU Rubi while retaining a totally stealthy & factory look. I installed the speakers and had the amp & processor installed professionally. The sound went from pitiful to very loud and satisfying, with remarkable bass out of the 8" factory enclosure, and fairly minimal rattling at high volume. It ain't cheap, but when you figure a tricked-out replacement head unit (to say nothing of the other toys) is around $1K, I think I did pretty good.

I did this in stages. I put the speakers and polyfill in first. Sound was better, especially in the sound bar, but overall improvement was marginal. If the factory system was 1 on a 10 scale, the speaker replacement took the system to a 2. The addition of the processor and amp took it to an 8/9 in my book. Coming from a pretty serious car audio tradition back in the day, I only reserve 10 for outstanding all around sound that comes with in excess of 1K watts and some serious sub enclosures, plus higher end speakers (the Polks are very good, but not stellar/great).

Here goes:


* Polk Audio db6501 6-1/2" Component System (dash): $199.99
* Polk Audio db 651s 6-1/2" Slim 2-way Speakers (sound bar): $49.99
* Outlet Special: Polk Mobile Monitor MM840 8" 4-ohm Component Subwoofer: $161.49


* JBL MS-8 Processor: $499.12
* JL Audio XD700/5 amp: $379.98
* Stiner 12ft 4000 Series Professional 6 Channel RCA interconnects: $25.69
* DB Link X-Treme Series XK10Z 10-gauge amp installation kit: $19.49
* DB Link PK4Z 4 gauge power series amp installation kit: $30.15
* RCA AH16100SN 16-gauge speaker wire (100 ft. for $10.48, but ended up buying some “nine wire” cable from the installer for a cleaner look)

Joann Fabric:

* Black Speaker fabric and pet netting to cover it (latter gives a more rugged look), some wood to cut out a new grill, and some Velcro and staples to bond it all together. The velcro lets me take the grill on/off: $20 or so


* A pillow for polyfill $4 or so (stuffed it liberally in all the speaker enclosures)

Best Buy:

* Adaptor for sound bar speakers because Polks were too small (UPC 086429029822): $18.99

Professional install:

$400 (included $40 or so for "nine-wire" replacement speaker cable)

GRAND TOTAL: About $1820

p.s., processor went under front passenger seat and amp went under passenger side of rear seat.


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Old 02-15-2013, 08:18 AM   #2
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Location: Black Hawk, CO
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Nice! Good to see someone using an MS8... I think a lot of people don't realize how big of a difference the processor makes when trying to go stealth and keep the factory stereo. The signal quality is pretty poor with the stock stuff, so the MS8 really cleans it all up - every time I install one, I am amazed at the difference it actually makes.

Where did you end up having it installed?

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Old 02-15-2013, 05:51 PM   #3
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Car Toys. Had to move amp under drivers seat after all because rear seat wouldn't fold all the way down. Good now. Very happy. Still searching for the elusive "perfect" settings. So many ways to tweak the MS-8!!!!
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Old 03-09-2013, 02:23 PM   #4
Join Date: Mar 2013
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So I am looking at doing the exact same thing to my 2dr 2013 Sahara.

Have been going back and forth if I want to lift first or finish the inside. The 430N with Alpine speakers and sub is absolute POOP! With summer coming up the top is gonna be off a lot and can stand the sound with the hard top much less off.

I can't believe how bad the sound is.

Not sure of the speakers I am going to order yet but first thing first I ordered JL MS-8. Gonna install that and see how things change with the stock speakers. They should be decent Alpines but the impedance rating of them may screw things up.

Just starting so I will see how things go. Thanks for the write up.

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Old 03-20-2013, 06:56 AM   #5
Join Date: Mar 2013
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do any of you guys have a wirign diagram .... i am doing simalar to my 2013 rubicon unlimited
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Old 03-21-2013, 07:54 AM   #6
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Send me a pm with your email address and I'll send you one.
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Old 04-03-2013, 12:01 PM   #7
Join Date: Feb 2013
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Originally Posted by axplayer View Post
Send me a pm with your email address and I'll send you one.
Sent you a PM for one also.
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Old 04-26-2013, 08:07 AM   #8
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Sound adjustment trick: If you go with an amp and processor, tune everything then adjust amp gains to give the sound bar speakers a little more oomph. Works wonders and balances out sound better.

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