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Topic Review (Newest First)
07-15-2013 11:18 AM
KG32a I thought I'd provide an update to my audio "upgrades". Some would argue that this is not much of an upgrade but I think the cost/benefit is well justified.

I installed the JBL P662 speakers in the soundbar and stuffed it full of 20oz polyfill. I also added the same polyfill to the sub enclosure. I chose the JBL speakers because they are 2ohm as are the factory speakers and rated very high for sound quality. The sound is so much better than before and I've adjusted the fader slightly to the rear so that my ear picks up the new speakers more so than before. Also, by adding the polyfill to the sub enclosure, you can now hear the sub and it is far more pronounced than before. I was able to use the factory speaker covers in the sound bar by slightly trimming the new speakers mounts. I purchased the harness adapters so I wouldn't have to cut any factory wiring.

I also added the hotheads headliners prior to installing the speakers to see what, if any, difference it made. I'm not sure it made much difference for sound quality but it did reduce road noise slightly considering I have the JKU 10A with the BFG tires.

Aside from the headliners my total investment is less than $100 for what I consider to be a huge difference. I plan to change out the dash speakers and the tweeters but for now, I'm done and moving on to upgrading the crappy head lights.
06-01-2013 12:52 AM
st1264
Quote:
Originally Posted by Lynskey View Post
Agreed that swapping the sub while retaining the factory amp will have zero to minimal gain. Also agreed that running minimal power to beautiful speakers will not reach their potential.
Exactly. You can put in the best 6.5's on the market (or sub) but when you keep the crappy stock amp you are getting about 10% of the improvement. Best to swap everything at once if you have the cash. I don't have the money to invest now, so I'm leaving it. I decided to do ALL or nothing.

For good sound you need a good HU (or processor), good speakers with enough clean power to run them = good Amp. Good bass = good sub with clean power to run it properly. Only doing one upgrade will not give you the desired effect. Once you are ballz deep in it, do it all so you don't have to mess with it again (believe me, been there done that).
05-31-2013 11:19 AM
Lynskey Agreed that swapping the sub while retaining the factory amp will have zero to minimal gain. Also agreed that running minimal power to beautiful speakers will not reach their potential.

I replaced my entire HU on back with all new everything. If I were to retain a factory HU (which I strongly argue against) then run HU-factory amp-sum device-new amp-speakers.

Also with the limited amount of room in the Jeep, I would do a nice Class D 5-channel amp to run everything. Less wiring, less space, runs cooler etc. That is what I did. My last vehicle had tons of room so I had 2 amps - one for components/speakers and one for the sub. But the 5-channel wrks perfectly.

Also once you do go new amp power to the sub, replace that plastic tub and put the sub in a real box. The plastic "sub tub" rattles like a MOFO when you have a nice 8" powered sub. My JL W3 lasted a week before I could't take it anymore. I added CLD tiles and tried to deaden the vibrations. No go. I ended up pulling the sub tub panel and put in a factory flat panel and got a seperate box. No rattles and it pounds (for an 8").
05-31-2013 09:04 AM
woansleftpeg
Quote:
Originally Posted by KG32a View Post
I think I've decided on the JBL P662 in the soundbar and pack it with polyfill, JBL P662S for the dash, and the Rockford Fosgate P3SD2-8 Sub which is 2ohm DVC and pack the enclosure with polyfill. I'm not sure on the tweeters yet. I may order a few and see what fits best.

I was going to use the JBL sub but decided not to since I'm going to try a 2ohm DVC Sub for now.

In your experience, should I use the polyfill, the foam enclosures, dynamat, or a combination of the three? I ordered the Hotheads Headliners for my hard top but I'll be switching to the soft top soon.
Are you just planning to do a straight swap of subs without adding a separate amp? If so, save your money. You'll get zero value from putting a new sub in, the factory amp isn't giving it anything like enough power so you won't get louder or crisper bass.

Also, P662 for the soundbar and P662S for the dash? Other way round, surely?
05-31-2013 07:45 AM
KG32a I think I've decided on the JBL P662 in the soundbar and pack it with polyfill, JBL P662S for the dash, and the Rockford Fosgate P3SD2-8 Sub which is 2ohm DVC and pack the enclosure with polyfill. I'm not sure on the tweeters yet. I may order a few and see what fits best.

I was going to use the JBL sub but decided not to since I'm going to try a 2ohm DVC Sub for now.

In your experience, should I use the polyfill, the foam enclosures, dynamat, or a combination of the three? I ordered the Hotheads Headliners for my hard top but I'll be switching to the soft top soon.
05-30-2013 04:07 AM
jeepedjeep Well I did the same thing with my 13 kept the stock hu (i already had the alpine premium sound)

I have all kicker ds speakers
and a JBL GT804 in the stock enclosure. it bumps good enough for me.


To mess with the stock amp is a bitch so I worked down stream do the the stock amps processing.

went like this

Stock amp to LC8 to PDX5

I mounted that stuff under my seat with the bracket I make

http://www.wranglerforum.com/f33/und...ts-231472.html
05-28-2013 10:15 AM
woansleftpeg
Quote:
Originally Posted by Moabite View Post
I disagree again. I replaced the sub and mounted a JBL amp under the passenger seat tied into the sub wires near the rear passenger door. It was a very simple and relatively fast install that required no access to the factory amp under the dash. If I do decide to install an amp for the other speakers, I will simply switch out the inputs for the sub amp. I prefer to do the upgrade in stages...to see what is really necessary and what is just hype.
That's fair enough. It would just aggravate me knowing that my speakers were capable of so much more but being held back by the amp's limitations. Kind of like buying a Jeep with a transmission that only had the first two gears.
05-28-2013 10:06 AM
KG32a I've been checking out speakers and the JBL's are 2 ohm but they recommend 25w minimum to run them so if the stock system is only pushing 15w then they may not be the solution. I also found a Rockford Fosgate 8" Sub that is 2 ohm with a dual voice coil. I'm not looking for glass breaking sound levels just much better clarity and overall sound quality. I also bought the hotheads headliner for my hard top and I'll go ahead and add the polyfill and possibly dynamat where needed.

I appreciate the suggestions and honestly, the differing opinions.
05-28-2013 09:55 AM
Moabite
Quote:
Originally Posted by woansleftpeg View Post
And if you're going to replace the sub and put an amp in to run it, you might as well do the whole lot in one go.
I disagree again. I replaced the sub and mounted a JBL amp under the passenger seat tied into the sub wires near the rear passenger door. It was a very simple and relatively fast install that required no access to the factory amp under the dash. If I do decide to install an amp for the other speakers, I will simply switch out the inputs for the sub amp. I prefer to do the upgrade in stages...to see what is really necessary and what is just hype.
05-28-2013 09:31 AM
woansleftpeg I've no doubt that replacing the speakers will improve the sound compared to stock, but with something like 15W RMS / 46W peak per channel from the amp @ 2 ohms, you're not going to realise most of the value of putting in $300 worth of high end speakers.

And if you're going to replace the sub and put an amp in to run it, you might as well do the whole lot in one go.
05-28-2013 09:02 AM
Moabite
Quote:
Originally Posted by woansleftpeg View Post
My experience has been that if you're not going to replace the factory amp, it isn't worth wasting money on good speakers.
I don't agree. I replaced the dash and soundbar speakers in my '13 without adding an amp and the difference is huge. Yes, it could be better and I may still add an amp for those speakers at some point...but it certainly was not a waste of money to switch out the speakers. The sub is a different story. It definitely needs its own amp. Replacing the sub without adding an amp would be a waste of money.
05-27-2013 09:07 PM
woansleftpeg I have the GTO804 and I'm pretty impressed with it, but I'm running it with a Pioneer amp. I don't imagine it will be very effective with the anaemic factory amp, especially given the stock unit is a 2ohm DVC and the JBL sub is a 4ohm SVC.

My experience has been that if you're not going to replace the factory amp, it isn't worth wasting money on good speakers.
05-27-2013 08:41 PM
Mattk11 You will need an amp or amps along with a summing device. The factory system is very underpowered, it is made for 2ohm speakers and the head unit/factory amp highly equalizes the factory speakers to limit frequency response which makes them sound bad. In other words it will take more than replacing speakers to make the factory head unit sound good.
05-27-2013 07:46 PM
KG32a
'13 JKU Upgrade- JBL speakers?

Like most Jeep owners, I'd like to upgrade the sound system in my my '13 JKU 10th Ann Rubicon. I have the 430 factory system and I am looking at the JBL GTO series (GTO638, GTO629, GTO19T tweeter) or P (P662) series speakers. Has anyone used them? Everyone seems to recommend the Polk 651's but I used them in my '09 Chevy 2500HD and I don't really care for them.

I plan to upgrade the speakers and the factory sub but I am going to keep the HU. I would also change out the factory amp if there is a simple "plug and play" upgrade available.

Does anyone know what the factory power output is to each speaker? The JBL's call for a minimum 25w.

I'm also looking at the JBL GTO804 Sub.

Thank you for your help!

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