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Discussion Starter #21
So how does this all sound? I will say that there won't be further work on this system because it is officially done. I don't feel an urge to replace the amp or head unit, I don't feel deficiencies in any frequency range. I won't even bother replacing the tweeters or rear column speakers. The system already has clarity and range. Insofar as I started this thread and endeavor with a goal to turn the Alpine system into a system that would be actually good, I feel that I've gotten there.

What many are wondering is the relative value of each of the upgrades. I would say about 80% of the improvement came from changing the 6x9 front door speakers to the 6x9 Infinity Kappas and the 6.5" rear door speakers to Infinity Kappas. If you do this, you will immediately hear a dramatic difference. Further, as time goes on and the speakers break in the bass increases and they become even better. In fact, even before I added the sub, I would say they made up for any lack of quality bass the system had.

The center channel speaker adds a bit to the mids. It is a mild difference but takes little money/effort. As others reported, voice calls are a bit clearer, and in general, the Infinity reference fits in better with the Infinity Kappas.

The pioneer sub rounds out the system and fills out the low end. Between this and the Kappas, I feel like I have enough bass. It is an improvement compared to the old sub, but if you're looking for huge booming bass this probably won't cut it. You'll have to go the Stealthbox + sub amp route.

Anyway, I just installed the sub/mid-range today. I may post another update on thoughts as I spend more time with this system. And of course happy to answer any questions anyone has.
 

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Good job guy! Nice pics. Even if the wifey doesn't think you're frugal or smart for doing automotive stereo work on the bathroom vanity, we are all impressed. :thumbsup:
 

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Discussion Starter #23
Good job guy! Nice pics. Even if the wifey doesn't think you're frugal or smart for doing automotive stereo work on the bathroom vanity, we are all impressed. :thumbsup:
Kitchen, actually. Wife thinks this was me being very frugal, but of course complained throughout about how long this was all taking. I can't win. :lol:
 

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How do the front full range Kappas speakers work? Are they getting full signal?
I tought it wasnt a full range signal to the oem 6x9 speaker
What is the impedance of the oem 6x9 speaker of the alpine system?

Are the kappas the same impedance as the paper alpines?
 

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All the signals are the same as factory, he only replaced the speakers. No signal processor involved. The Kappa's are rated at 2 ohm same as factory but undoubtedly much higher efficiency at 96db.
 

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Thanks for the update. Very happy everything is complete and sounds good. Can't look at the pics here at work, but will when I get home.:thumbsup:
 

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Discussion Starter #27
How do the front full range Kappas speakers work? Are they getting full signal?
I tought it wasnt a full range signal to the oem 6x9 speaker
What is the impedance of the oem 6x9 speaker of the alpine system?

Are the kappas the same impedance as the paper alpines?
Great q. The 6x9s definitely don't get cut off at the bottom (running woofer test they hit the lowest notes) - still trying to figure out if they get crossed over to the tweeters at the top end. Anyone know for sure? I've been trying to figure this out as I'm driving so I'm not sure if it is the 6x9 I'm really hearing or the 6.5" rear door speakers for the high end.

The Kappas are 2 ohm. I *think* I read somewhere that the Alpines are 2 ohm as well. Can anyone confirm?
 

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Great q. The 6x9s definitely don't get cut off at the bottom (running woofer test they hit the lowest notes) - still trying to figure out if they get crossed over to the tweeters at the top end. Anyone know for sure? I've been trying to figure this out as I'm driving so I'm not sure if it is the 6x9 I'm really hearing or the 6.5" rear door speakers for the high end.

The Kappas are 2 ohm. I *think* I read somewhere that the Alpines are 2 ohm as well. Can anyone confirm?
Pretty sure there is a topic that has all the info on what signal's are where. I have the RamForumZ's etched in my brain though. I'm pretty sure the front 6x9's are clipped on the high end and therefore the coaxial speaker doesn't fully function. The high signal being sent to the A pillar tweeter. I was looking at mine yesterday saying it's a damn shame they have the side panel grille opening shaped for the 6x9. I would like to put a 6.5 component Kappa there. And of course the A pillar in the JGK is 3/4" NOT 1", the size of the component tweeter. My ram was though. Again not sure, I think the rear doors are full range signal, which would suit a 6x9 but I'd still prefer the 6.5 because the tweeter again is aiming at someone's hip, not where it should aim. Thinking I could maybe install those tweeters in the D pillar openings. Changing the A-pillar tweeters to soft dome Kappa's should smooth things out nicely. I haven't seen anyone do that yet. At $159.99 a pair I might could understand why. Infinity Kappa 10.11t 3/4" soft dome tweeters at Crutchfield.com

Do a little digging here on Jeep Garage and I'm sure you can come up with accurate info.

The Alpine system is 2 ohm.

Move the passenger seat from the Yo Boy position your wife leaves it in (LOL at least mine does) to forward and upright and you open up the soundstage considerably. You can also do a head check for lane changes without looking at the humongous headrest:cool:
 

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Discussion Starter #29 (Edited)
Pretty sure there is a topic that has all the info on what signal's are where. I have the RamForumZ's etched in my brain though. I'm pretty sure the front 6x9's are clipped on the high end and therefore the coaxial speaker doesn't fully function. The high signal being sent to the A pillar tweeter. I was looking at mine yesterday saying it's a damn shame they have the side panel grille opening shaped for the 6x9. I would like to put a 6.5 component Kappa there. And of course the A pillar in the JGK is 3/4" NOT 1", the size of the component tweeter. My ram was though. Again not sure, I think the rear doors are full range signal, which would suit a 6x9 but I'd still prefer the 6.5 because the tweeter again is aiming at someone's hip, not where it should aim. Thinking I could maybe install those tweeters in the D pillar openings. Changing the A-pillar tweeters to soft dome Kappa's should smooth things out nicely. I haven't seen anyone do that yet. At $159.99 a pair I might could understand why. Infinity Kappa 10.11t 3/4" soft dome tweeters at Crutchfield.com

Do a little digging here on Jeep Garage and I'm sure you can come up with accurate info.

The Alpine system is 2 ohm.

Move the passenger seat from the Yo Boy position your wife leaves it in (LOL at least mine does) to forward and upright and you open up the soundstage considerably. You can also do a head check for lane changes without looking at the humongous headrest:cool:
Before you put in the tweeters, you might want to upgrade the other speakers first and give it a listen. Even if the 6x9s get cutoff (and I'm still somewhat unsure), the rear 6.5"s definitely don't. The Kappas have very, very strong treble output, some even complain that it is overwhelming. Right now, with the original tweeters, upgraded center speaker, upgraded door speakers it is strong but not overwhelming. I definitely don't boost the treble in the EQ/HU (I do boost the bass a bit). I considered something like this
but after hearing the result of the existing upgrades, I'm not going for it.

I would also not recommend swapping the front speakers to 6.5" as the 6x9s add to the bass output considerably, especially if you plan on sticking with an 8" sub (my pioneer sub upgrade is nice, but it is still an 8" shallow mount with no dedicated amp).
 

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Discussion Starter #33
So why were the infinity kappas the pick for your replacements. Which other brands did you look at?
Several reasons.

1) Had the Infinity Gold system in my old ZJ and really liked it.

2) Everyone raves about the Harmon Kardon system, and of course HK is the parent co of Infinity. But HK really is the brand name for factory systems these days - you can't buy HK systems third party. Infinity seems like it fills that spot, with JBL targeting the "I'm young and want big bass and not to spend too much cash" group.

3) The Kappas got great reviews and the reviews basically said what I wanted to hear (great clarity, solid bass but not bass fart cannons). Also, good specs - the 6x9s went very low and given that I wasn't upgrading to above an 8" sub, the added bass would help.

4) 2Ohm speakers, high sensitivity. Given that I was keeping stock amp this was very important.

I considered some others, but the JBLs seemed like a crappier version of the Kappas. I didn't want anything Alpine after these "Alpine Premium" POS (note to manufacturers: if you put your name on a crappy product, people will avoid buying your supposedly good products when they go to replace it). I eliminated cheap options with worse specs/reviews - stuff like Kenwood and so on. Then I eliminated brands I knew nothing about. I was left pretty confident I was doing the right thing with the Kappas, and given the results I would say my logic was sound.
 

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Cool,what exactly did you install? Any wire splicing,easy install,same connectors? What was the pricing found on what you installed.
 

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Discussion Starter #35
Cool,what exactly did you install? Any wire splicing,easy install,same connectors? What was the pricing found on what you installed.
Front: http://smile.amazon.com/Infinity-Kappa-693-11I-Speakers-Edge-Driven/dp/B00FPU50NW

Rear: http://smile.amazon.com/Infinity-Kappa-62-11I-6-5-Inch-Speakers/dp/B009GHQX5O

Center: Infinity Reference X REF-3002cfx

Sub: http://smile.amazon.com/Pioneer-TS-SW2002D2-8-inch-Shallow-Mount-Subwoofer/dp/B00JQTU434

Installed the last two myself with Metra adapters. The first two were installed by Best Buy (I think they also used Metra adapters). BB charged me like $250 or something.
 

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Why did you not change the pillar front tweeter? You bought the speakers and BB installed them? When you got your jeep back was the fit and finish the same. What was your opinion of their work?
 

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Discussion Starter #37 (Edited)
Why did you not change the pillar front tweeter? You bought the speakers and BB installed them? When you got your jeep back was the fit and finish the same. What was your opinion of their work?
I figured based on what I liked/didn't like with the system that I may not think that was a worthwhile upgrade. I was right - I don't feel a pressing need to touch them. Plus, they don't have a stock cover, so it would be visibly different.

Yep, bought speakers from various sources - some from Crutchfield, some from Amazon.com, some from Amazon.com sellers, etc. Then brought it all to Best Buy. Honestly, people on here strongly suggested that I not take it to BB, but they did a perfectly good job and given that it was walking distance to me I can't complain at all. The final look is 100% stock. If the light hits the sub just right you can see "pioneer" lettering through the cover, but you basically have to look for it (and it looks perfectly fine).

If I was to do anything else, I would change the head unit (just because this POS keeps freezing and there's no way to reset it other than pulling over, shutting off the car and waiting a few minutes for it to really shut down).
 

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Lol,yeah the head unit can do that occasionally. With regards to the sub install did they put any filler in there to make sure you had no rattles and the sub gave clean lows without reverberation?
 

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Discussion Starter #39 (Edited)
Lol,yeah the head unit can do that occasionally. With regards to the sub install did they put any filler in there to make sure you had no rattles and the sub gave clean lows without reverberation?
Sub install I did myself and I lined the inside of the sub enclosure with Dynamat (it was like $18 off of Amazon). Here's what it looks like with the Dynamat in: http://imgur.com/pK9Jdt5
 

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I had freezing issues and it wouldn't play high bit rate files from a USB. The dealer re-flashed it and it's worked without any problems since.


Also there is a limit on the size of USB/ SD Cards. Pretty sure it's 32Gb.
 
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