Amplifier Installation

williambmac

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After reading several threads regarding amplifier mounting solutions, I thought I would share my install.

I was in the process of intalling a new carpet set in my jeep and was looking for a mounting solution for the two alpine amplifiers that were mounted under the rear seat. Unfortunately due to there size there was no way I could fit them up under the dash.

After some research I decided to go with a smaller foot print 5 channel sub. I really wanted the Helix amp that @Chris has in his ride, but it was a little more than I wanted to spend.

So, I opted for this bad boy from Crutchfiled.
https://www.crutchfield.com/p_13698606/JL-Audio-XD700-5v2.html?tp=35808


thumbnail_IMG_2624.jpg




Even though these new class-D amps don't generate as much heat as a A/B amp, JL strongly recommended NOT mounting it upside down.

I removed the lower kick panel from under the steering column and started thinking about how I wanted to go about mounting the amp.
I was originally going to make a bracket and hang it off the steering column like everyone else has been doing, but then I would have to space it down to allow for proper air flow.

Instead I decided to make a shelf where I could actually slide the amp in.

I have a piece of aluminum lying and some steel lying around so I came up with this idea.
thumbnail_IMG_2613.jpg


Unfortunatley I don't have access to a sheet metal brake so I had to bend a lip using a vise
thumbnail_IMG_2615.jpg


I made a bracket to support the rear of the plate. The bracket mounts to the bottom of the steering column. I used a button head cap screw to attach it

thumbnail_IMG_2612.jpg


I pulled out the trusty Sawzall to make a little room by removing the steering column limiter.
thumbnail_IMG_2619.jpg



I slipped a couple 6mm speed clamps between the dash and the dash support.
thumbnail_IMG_2620.jpg


Here is it all bolted up.
thumbnail_IMG_2621.jpg


trial fit. everything looks good
thumbnail_IMG_2626.jpg


thumbnail_IMG_2627.jpg

It's all wired up and installed.
I will admit my amplifier tuning capabilities are limited, so I stopped by a local shop to see if they would do it for me.
Being that I did not purchase the amp from them, it would be 200.00. The next available appointment was 4 weeks out.

I spoke with a couple people I know and they told me... most shops do it for free when you purchase the components and have them do the install.
And it's usually a $50-$75 off the street.

I did find several tutorials on Youtube using an Oscilliscope, So I guess I'll be bringing mine home from work this coming weekend.
 
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After reading several threads regarding amplifier mounting solutions, I thought I would share my install.

I was in the process of intalling a new carpet set in my jeep and was looking for a mounting solution for the two alpine amplifiers that were mounted under the rear seat. Unfortunately due to there size there was no way I could fit them up under the dash.

After some research I decided to go with a smaller foot print 5 channel sub. I really wanted the Helix amp that @Chris has in his ride, but it was a little more than I wanted to spend.

So, I opted for this bad boy from Crutchfiled.
https://www.crutchfield.com/p_13698606/JL-Audio-XD700-5v2.html?tp=35808


View attachment 261948



Even though these new class-D amps don't generate as much heat as a A/B amp, JL strongly recommended NOT mounting it upside down.

I removed the lower kick panel from under the steering column and started thinking about how I wanted to go about mounting the amp.
I was originally going to make a bracket and hang it off the steering column like everyone else has been doing, but then I would have to space it down to allow for proper air flow.

Instead I decided to make a shelf where I could actually slide the amp in.

I have a piece of aluminum lying and some steel lying around so I came up with this idea.
View attachment 261950

Unfortunatley I don't have access to a sheet metal brake so I had to bend a lip using a vise
View attachment 261952

I made a bracket to support the rear of the plate. The bracket mounts to the bottom of the steering column. I used a button head cap screw to attach it

View attachment 261953

I pulled out the trusty Sawzall to make a little room by removing the steering column limiter.
View attachment 261955


I slipped a couple 6mm speed clamps between the dash and the dash support.
View attachment 261961

Here is it all bolted up.
View attachment 261957

trial fit. everything looks good
View attachment 261958

View attachment 261959
It's all wired up and installed.
I will admit my amplifier tuning capabilities are limited, so I stopped by a local shop to see if they would do it for me.
Being that I did not purchase the amp from them, it would be 200.00. The next available appointment was 4 weeks out.

I spoke with a couple people I know and they told me... most shops do it for free when you purchase the components and have them do the install.
And it's usually a $50-$75 off the street.

I did find several tutorials on Youtube using an Oscilliscope, So I guess I'll be bringing mine home from work this coming weekend.
I agree, very nice work. I would just tune the amp myself. The variety of other noises a Jeep may make due to soft top, no top, no doors, et. al. limit the kind of sound reproduction that would be studio class. As long as I can hear mine well going 60mph down the highway with the top off, I'm more than happy. Great work!
 
That is under your front seat correct? I thought of that but have fold and tumble on both sides. I wouldn't clear the amp.

Yep, it’s under my front seat. I’m not sure if this would have worked with the fold and tumble as my PRP seats don’t have it. @mrblaine would likely know for sure.
 
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Yep, it’s under my front seat. I’m not sure if this would have worked with the fold and tumble as my PRP seats don’t have it. @mrblaine would likely know for sure.
I don't know that we tried with the original bases. All I knew is once I saw that shitty rat's nest and that fantastic plywood mount under the dash, it had to go.
 
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I don't know that we tried with the original bases. All I knew is once I saw that shitty rat's nest and that fantastic plywood mount under the dash, it had to go.
Yeah, I’m really glad I paid for that shitty rats nest to. I guess it’s just a testament to how many people out there do shitty quality, subpar work they are somehow OK with.