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Old 10-17-2018, 08:52 AM
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Analyze this Audio Upgrade - Thoughts/Recommendations?

Looking to upgrade the audio in my '13 JKU that currently has factory audio 130 unit and speakers (no sub) with uConnect.

Head Unit: Kenwood Excelon DDX9904S
Front: JBL Club 6520
Roll Bar: JBL Club 5020
Amp: JL Audio MX280/4
Powered Sub: Rockford Fosgate Punch P300-10
Camera (front & rear): Audiovox ACA800
Harness: iDatalink Maestro

Appreciate your feedback. Thanks.

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Old 10-17-2018, 10:59 AM   #2
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Had a Kenwood in my gnc Sierra. Very nice.
Looks good but 6-1/2 in most roll bar so 5 1/4 would need a adapter.
Also I'm a fan of one amp (less chance of ground loop issues like humm or buzz.) so I did a 5 channel jl and a speaker box
Nothing wrong with the all in one box but if the speaker or amp go out there you are. Also bang for buck goes way up. I had a infinity bass link all in one and it was just ok. Sundown 10' in a box can be fit in a box that goes under the front seat and amp under the other.
The guy builds the underseat box and sells them here
The sundown woofer goes lower than the jl.

Also look at maestro for a steering wheel kit.

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Old 10-17-2018, 03:56 PM
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Originally Posted by Jkujohn View Post
Had a Kenwood in my gnc Sierra. Very nice.
Looks good but 6-1/2 in most roll bar so 5 1/4 would need a adapter.
Also I'm a fan of one amp (less chance of ground loop issues like humm or buzz.) so I did a 5 channel jl and a speaker box
Nothing wrong with the all in one box but if the speaker or amp go out there you are. Also bang for buck goes way up. I had a infinity bass link all in one and it was just ok. Sundown 10' in a box can be fit in a box that goes under the front seat and amp under the other.
The guy builds the underseat box and sells them here
The sundown woofer goes lower than the jl.

Also look at maestro for a steering wheel kit.
- The 5 1/4" does have the kit with it. However, I am not sure why they listed the 5 1/4" if the roll bar takes 6 1/2".

- I was intending to use the maestro steering wheel kit.

- Can you give a specific box, amp, and sub combo you would recommend that could be placed in the back and wired in such a manner to be easily and quickly removed?
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Old 10-19-2018, 12:51 AM   #4
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Maybe you could use something like an Anderson type connector for your power & ground then just an insulated bullet connector for the remote wire and you could put almost any amp and box combination back there. I have a Small JBL and a Kicker Key amp under the front passenger seat (no hum or ground loops) and currently a 12" sub in the back in a 1.25 cu ft down firing box I made so I can still throw stuff on top of it.. I just take out the box and put some twist on caps over the speaker wire when I need the back space. I also have my "traveling" 10" pioneer down firing box that's small when I need more space but still want bass..
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Old 10-19-2018, 04:04 AM   #5
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IMO you are making a mistake running coax speakers up front, been there done that. You want you highs as high as possible in the rig. Do yourself a favor and run components up front.
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Old 10-19-2018, 02:25 PM
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Originally Posted by TerryC6 View Post
IMO you are making a mistake running coax speakers up front, been there done that. You want you highs as high as possible in the rig. Do yourself a favor and run components up front.
OK given what I am looking at for the other parts, what would you recommend? Would the amp size need to change too with whatever you recommend?
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Old 10-19-2018, 03:38 PM   #7
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I am using the JL MHX280/4 amp and I love it. Plenty of power and plenty loud for whether you want components or coaxials.

+1 on components up front. I believe the front pods accept 6.75" woofers, but you should double check. I would get somethings like this if I had to do it over again:
https://www.sonicelectronix.com/item...h-P1675-S.html

These coaxials are super easy to the sound bar and are plug and play without any adapter. The soundbar is just filler anyway, so I wouldn't spend too much money/time on it.
https://www.amazon.com/Mopar-WRANGLE.../dp/B004SUO5QS

I was able to zip tie my amp near my left foot up against the body. I tied it to the molded metal pieces that support the dash and I think its a perfect location.
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Old 10-19-2018, 04:00 PM
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Originally Posted by BajaYeller View Post
I am using the JL MHX280/4 amp and I love it. Plenty of power and plenty loud for whether you want components or coaxials.

+1 on components up front. I believe the front pods accept 6.75" woofers, but you should double check. I would get somethings like this if I had to do it over again:
https://www.sonicelectronix.com/item...h-P1675-S.html

These coaxials are super easy to the sound bar and are plug and play without any adapter. The soundbar is just filler anyway, so I wouldn't spend too much money/time on it.
https://www.amazon.com/Mopar-WRANGLE.../dp/B004SUO5QS

I was able to zip tie my amp near my left foot up against the body. I tied it to the molded metal pieces that support the dash and I think its a perfect location.
Well, I went back through and I think I am going to looking at the JBL Club 6500C components for up front and the JBL Club 5020 for the sound bar. The JBL Club 5020 are 5 1/4" and come with an adapter. I was told the JBL 6 1/2" were too tall. And gonna stick with the JL Audio MHX280/4 amp.
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Old 10-19-2018, 06:05 PM   #9
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Well, I went back through and I think I am going to looking at the JBL Club 6500C components for up front and the JBL Club 5020 for the sound bar. The JBL Club 5020 are 5 1/4" and come with an adapter. I was told the JBL 6 1/2" were too tall. And gonna stick with the JL Audio MHX280/4 amp.
I think that is a better choice
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Old 10-22-2018, 08:45 AM
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Well, I went back through and I think I am going to looking at the JBL Club 6500C components for up front and the JBL Club 5020 for the sound bar. The JBL Club 5020 are 5 1/4" and come with an adapter. I was told the JBL 6 1/2" were too tall. And gonna stick with the JL Audio MHX280/4 amp.
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I think that is a better choice
Actually gonna look at the Polk DB652 for the roll bar so I can get 6 1/2" in lieu of the JBL 5 1/4". I think it would be better. OR should I just look at sticking with Polk and go with Polk DB 6502 for the front knee space?

However, if going with the Polk speakers in both locations, I think I would need to up the amp size, correct? Thoughts and recommendations please.
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Old 10-22-2018, 11:46 AM   #11
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@MAG00 there have been good reviews on those speakers though I have never heard them. I am not really one to give speaker advice because we are all different when it comes to sound that is why I recommend always going out and listening to speakers before buying them.

But with that said yes I would up the amp. I am a firm believer that having an amp at least as large or larger than what the speakers can handle is a good thing for the system. Because it is rare that we listen to music at full volume the amp does not work as hard and it allows for a larger dynamic range without clipping the sound.
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Old 10-22-2018, 12:07 PM
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@MAG00 there have been good reviews on those speakers though I have never heard them. I am not really one to give speaker advice because we are all different when it comes to sound that is why I recommend always going out and listening to speakers before buying them.

But with that said yes I would up the amp. I am a firm believer that having an amp at least as large or larger than what the speakers can handle is a good thing for the system. Because it is rare that we listen to music at full volume the amp does not work as hard and it allows for a larger dynamic range without clipping the sound.
Any recommendations on a specific amp? Both sets of the Polks say handles up to 100 watts RMS (300 watts peak power).

Had the following thrown in the mix to me. Rockford Fosgate TM400X4AD (100 watts RMS x 4) and Alpine KTA-30FW (75 watts RMS x 4)

Would like something compact that can mount behind the dash if possible? Space behind glove box or under driver side steering columns maybe.
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Old 10-22-2018, 12:19 PM   #13
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Any recommendations on a specific amp? Both sets of the Polks say handles up to 100 watts RMS (300 watts peak power).

Had the following thrown in the mix to me. Rockford Fosgate TM400X4AD (100 watts RMS x 4) and Alpine KTA-30FW (75 watts RMS x 4)

Would like something compact that can mount behind the dash if possible? Space behind glove box or under driver side steering columns maybe.
No specific recommendation. I came close to buying the Fosgate unit you referenced though. I ended up going with a larger amp.
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Old 10-22-2018, 04:06 PM
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I was going back through stuff and wanted to run a few more things by y'all and had a couple more questions.

Head Unit: I am settled on the Kenwood Excelon DDX9904S

Speakers Front: Either the Polk Audio DB 6502 components or the JBL Club 6500C components

Speakers Roll Bar: Polk Audio DB 652 2-way

Amp: This is something I have more questions on. Originally was looking at the JL Audio MX280/4 but if I go with the Polk speakers for both locations I understand the amp needs to be larger. So if that is the case I was looking at one of the following: Rockford Fosgate Power T400X4ad, Alpine KTA-30FW, Rockford Fosgate TM400X4AD, or Soundstream Stealth ST4.1000D. I am leaning towards going with the Polk Audio speakers and the either the Alpine amp or either of the Rockford amp.

Would you go with Polks in both locations and up the amp to one of these units? If so, which amp?

Thoughts on the amp being marine grade in a jeep?

Sub: Originally looking at the JL Audio ACS110LG-TW1 powered sub unit. Thoughts on this versus a more traditional set up like JL Audio 300-Watt bass package #1 that includes an JL Audio BassWedge ported enclosure, 1-10” sub, and JL Audio JX500/1D amp or JL Audio 300-Watt Bass Package #2that includes an Sound Ordnance Bass Bunker enclosure, 1-10” sub and JL Audio JX500/1D amp.

Viewing video: My understanding is that the head unit will not play video when the vehicle is in drive. However, I have read that you can override that with either a device or I think grounding the e-brake? What is needed or has to be done?

Trying to get it nailed down to “do it right the first time” and not go way overboard, but $100 to $200 one way or the other is ok to get it right in regards to things being paired up properly to sound good.

Again, thanks a ton on any input y'all can provide.
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Old 10-22-2018, 04:28 PM   #15
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I have owned several Rockford amps and anything premier series didn't impress me like the jl stuff. I think the 280 jl amp is still a good choice. More power past this point doesn't equal more or better sound. I think jbl speakers are nice and so are the Polk but not a fan of mixing one with the other. Mixing them you may find one getting louder highs or mids at different volumes. Like the voice sound changes. Which one you choose your ears adjust to. They are both really nice.
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Old 10-22-2018, 05:06 PM
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I have owned several Rockford amps and anything premier series didn't impress me like the jl stuff. I think the 280 jl amp is still a good choice. More power past this point doesn't equal more or better sound. I think jbl speakers are nice and so are the Polk but not a fan of mixing one with the other. Mixing them you may find one getting louder highs or mids at different volumes. Like the voice sound changes. Which one you choose your ears adjust to. They are both really nice.
Another amp that was suggested was the Alpine KTA-30FW (75 watts RMS x 4 at 2 or 4 ohms).

Wouldn't the JL amp (50 watts RMS x 4 at 4 ohms; 70 watts RMS x 4 at 2 ohms) be a little under powered though?

There is another JL amp that is 70 watts RMS x 4 at 4 ohms (125 watts RMS x 4 at 2 ohms).

Thoughts on picking an amp that is marine rated? Needed...not needed?
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Old 10-22-2018, 05:30 PM   #17
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Wouldn't the JL amp (50 watts RMS x 4 at 4 ohms; 70 watts RMS x 4 at 2 ohms) be a little under powered though?
Your only pushing a 6 inch speaker. It's enough. Theres not much you can do to get any better. It's a matter of speaker placement and how much back ground noise past a certain point theres not much more power or better speakers help.
In this application you would be hard pressed to tell a difference between a nice set of focal vs a cheap pair of kickers. Going to 100 rms maybe a 3db increase.
I think it's like the difference between a 10k winch and a 12k one. Some certain time it makes a difference but the one works great amd 99% of the time it's enough. Past a point more power doesn't do much. Headroom clipping all that
Quote:

Thoughts on picking an amp that is marine rated? Needed...not needed?
it may be nice to never worry about getting wet.
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Old 10-22-2018, 07:12 PM   #18
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Not to throw more fuel on the fire but I am running my rear speakers off the head unit. Once everything is set right the rear speakers run about 10db less than the fronts. SO they will never see more than about 10 watts with a 100 watt amp. The DB952 have pretty good sensitivity so they will run just fine at that low of power.

For the record this is what I am running:

Pioneer AVIC-8200 NEX
What is now the Hertz ML Power 5 running in 3 channel mode
Audison Voce AV K6 up front
Morel Maximo Coax in sound bar
Sound Integrity BM MK V sub in custom enclosure
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Old 10-24-2018, 05:38 PM
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I am going to back down to the JL Audio MX500/4 amp as I have heard from several people now that it will be enough and the they like the JL Audio performance better.

Also, I came across this note from an installer on an old thread on here that said, "fastrings on the front speakers because you will find that the front speakers are not close to the grilles so the sound will get lost in the drivers underdash and behind the glovebox on the passenger side. The fastrings will force the sound out through the grilles." Any thoughts on this?

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