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Old 08-23-2013, 01:31 PM   #1
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Placement of Amps in JK

Hey everyone,

I am getting ready to put my stereo system that I had in my old TJ into my JK. It will consist of:

Pioneer DEH-P5100UB head unit
10" Alpine Type-R sub
Alpine Type-S speakers for the roll-bar and dash
And Two amps (mono and 4 channel) to power the speakers and sub.

My problem is:
When I had everything in my TJ the Amps fit perfectly underneath the rear seat. I currently have the back seat out of my JK but I am pretty sure they can't fit under the rear seat if I were to put it back in. I tried to see if they could fit under the front seats, but one only seems to fit under the passenger side and not the driver side seat.

Is there any reason I couldn't tuck them away in the little cubby shown in the pic below? I'm guessing its a no go because they get too warm but I figured I would ask... I should add I know very little about this stuff.

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Here are a couple pics of my sub enclosure I'm working on. It used to be a dual 10" enclosure but I cut it in half to have more room. It was designed to sit behind the back seat of my old TJ.

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Pics of speakers going in:

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Old 08-23-2013, 01:38 PM   #2
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Personally I'd put the 4ch under the passenger seat and mount the monoblock to the sub enclosure.

Where and how are you planning to mount the 6x9s? You do know that the JK is 6.5" woofers in the dash as well as the soundbar, right? You'll have to do some significant modification to the pods in the dash to make those fit.

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Old 08-23-2013, 02:46 PM   #3
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Thanks for the reply,

That's a good idea to mount the mono right on the enclosure.

Ah man.... No I didn't know that, to be honest I assumed they would fit with a new anchor plate. So I would have to go with 6.5" speakers?

I guess I need to check out crutchfield and find out what I need.
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Old 08-23-2013, 02:52 PM   #4
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Crutchfield will give you a long list of speakers that won't fit. They'll almost certainly be wrong on most of them. You can fit any 6'5" speaker to the pods using adapters, you may have to drill an extra hole in the long plastic lug of the adapter but it's extremely simple.

Also, because you have factory tweeters in the tombstones I recommend looking at components rather than coaxials for the dash. The factory tweeters are very easy to replace with little or no cutting, depending on the model of component you go for.
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Old 08-23-2013, 05:04 PM   #5
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Okay so 6.5" coaxial speakers for the rollbar, and 6.5" component speakers for the dash that comes with the tweeters right?

My other question is will my 4 channel amp be adequate to power the tweeters as well? I know it was great for the 4 speakers before but now that it will be 2 coaxial speakers and 2 component speakers, is that different then powering 4 coaxial speakers?
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Old 08-23-2013, 05:25 PM   #6
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Correct 6.5" speakers in the dash also. You would actually use the components that you would buy to replace both the tweeter and dash speaker that came from the factory.
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Old 08-23-2013, 05:34 PM   #7
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Quote:
Originally Posted by NWranglerS View Post
Okay so 6.5" coaxial speakers for the rollbar, and 6.5" component speakers for the dash that comes with the tweeters right?

My other question is will my 4 channel amp be adequate to power the tweeters as well? I know it was great for the 4 speakers before but now that it will be 2 coaxial speakers and 2 component speakers, is that different then powering 4 coaxial speakers?
Correct, 6.5" all round. Your component set will come with a crossover to which both the woofer and tweeter will connect, and the crossover will connect to a single amp channel in just the same way as a coaxial speaker would - so yes, your amp will be fine (obviously ensuring you match the power rating of the speakers to the amp).
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Old 08-23-2013, 05:39 PM   #8
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The amp will be fine. The front 6.5 components will have a woofer, tweeter, and crossover (think "splitter") for each side. The amp speaker out goes into the crossover and treats the whole thing as one speaker.

Sorry if this is oversimplified, just never know.
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Old 08-23-2013, 05:40 PM   #9
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Damn! Woans beat me to it!!!
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Old 08-23-2013, 05:46 PM   #10
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Haha it is not over simplified for me. I appreciate you guys taking the time to answer these questions it is helping a lot.

I guess I just need to figure out what brand speakers to go with, maybe I will just go with Alpine type S since that's what I had before and liked them. I need to do some shopping around. Feel free to post any opinions.

Hopefully tomorrow I will finish the sub enclosure so that is all squared away. I just need to clean up the side I cut and line it with fabric. I'll post up some pics when done!
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Old 08-23-2013, 06:08 PM   #11
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You could put your ENTIRE sub in the cubby... Coming to production hopefully soon. As in, by the end of the year. Or 2015 lol.


Both my amps are mounted up front- Klipsch speaker amp behind the dash. My sub amp is below the dash on the driver's side- up against the front fender/footwell. There is an aluminum bracket already in the footwell. Hard to see in the pic. Easy enough to drill through. I've shown my set up to numerous people, doors off, and NO one has spotted the amp.
  • Also mounted a bass booster in the bottom dash- right of the steering wheel. There is a tiny vent there- opened it up a little.
  • My CB is also installed on the bottom half of the dash. The CB mounted perfectly in my Klipsch amp bracket.
  • External CB speaker under the existing speaker.
Replacing that single bottom dash piece (if you're not great with a Dremel) is around $25. Not a big deal and everything is nice and tight/tucked away. Also installed rear tub lights at the same time. Next is a disco ball...I would like to point out that I did none of this. Took my husband and father-in law an entire weekend ( and then some).
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Old 08-23-2013, 07:18 PM   #12
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Looks cool Jeepherz!
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Old 08-23-2013, 07:21 PM   #13
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Quote:
Originally Posted by woansleftpeg View Post
Personally I'd put the 4ch under the passenger seat and mount the monoblock to the sub enclosure.

Where and how are you planning to mount the 6x9s? You do know that the JK is 6.5" woofers in the dash as well as the soundbar, right? You'll have to do some significant modification to the pods in the dash to make those fit.
Thats exactly what I did today. I installed the sub and Amp about 3 weeks ago. Mounted the Sub Amp directly to enclosure for quick removal of sub and Amp in the back. Today I installed the 4 channel Amp under the passenger side seat and then Focals upfront and in Sound bar.
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Old 08-23-2013, 07:32 PM   #14
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Guys, what are your thoughts on Alpine Type SPS-610 speakers vs Alpine SPR-60 speakers?

Worth the price increase for the Type R's?
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Old 08-23-2013, 07:42 PM   #15
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I haven't heard either so can't comment. A little bit of Googling on the Type S suggests that they're a little lacking in low range punch, but internet reviews are generally worth the paper they're written on unless you know and trust the source. If you're not in a huge hurry, go into Best Buy and have a listen to them.
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Old 08-25-2013, 12:14 PM   #16
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I ended up getting 6.5" Alpine type S components (SPS-610C) and coaxials (SPS-610) for the dash and roll bar. Found a good deal on amazon for a packaged deal. I think they should sound good with my 4 channel amp powering them. I had the same speakers before only 6x9's and 4.5" that I liked a lot.

I'll lost up some pics when I get everything done, thanks for the help.
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Old 08-25-2013, 12:33 PM   #17
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Are the alpines better than the db 6501 and db 651?
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Old 08-25-2013, 05:00 PM   #18
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I'm not sure... I just went with Alpines because they sounded good before and they cost right around what I felt like paying.
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Old 08-25-2013, 06:36 PM   #19
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I'm not sure... I just went with Alpines because they sounded good before and they cost right around what I felt like paying.
Which exactly satisfies the two most important criteria that everyone should consider when purchasing ICE components.
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Old 08-25-2013, 07:03 PM   #20
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Where did you end up deciding to put the amps? I put mine under the rear Jeep floor mat, in the little hidden space. It is a smaller class D monoblock and haven't had any issues with heat. I was going to install it on the box, but two things held me back. First, if someone stole the sub and box they would get everything. Secondly, I wanted to go for a clean install and my ground for the amp is right next to the hidden compartment.
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Old 08-26-2013, 05:32 PM   #21
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Hey Menasor,

Thats what I was thinking when I found out the amps wouldn't fit underneath the rear seat. I thought it would be awesome to fit at least one amp in there. Did you keep the plastic lining in or did you take it out? Any chance you have a pic? What did you use to ground the amp?

I am still waiting on my order of new 6.5 speakers so I haven't done anything yet.

Thanks.
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Old 08-26-2013, 06:43 PM   #22
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Sorry man, no pic. I did keep the lining in there because it prevents the amp from sliding around. When you take the Jeep mat off, if you look to the right, there will be a black steel tie down. I trimmed the plastic from around it, unscrewed it, and put my ground underneath it. Ground is about 6 inches from the amplifier and is covered by the panel. Doubt there is room for 2 amps there, unless you find a 5 channel.
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Old 08-26-2013, 06:44 PM   #23
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Mine sits right under my rear diver side seat
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Old 08-26-2013, 06:45 PM   #24
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On the cubby- this probably goes without saying....But if you're not running a hard top full time- the cubby can get wet. (A quick wash with no top and mine had a decent amount of water). A Class D amp might be a good idea. Or maybe attach the amp to the underside of the cover/not IN the cubby.
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Old 08-26-2013, 07:27 PM   #25
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I mounded my amp underneath the drivers side rear seat. Works for me and stays out of sight.
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Old 08-27-2013, 08:13 AM   #26
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Hi Dominik , wenn ich Dir helfen kann , dann lass es mich nur wissen - ich packe gerne mit an :whist ling:

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