Subwoofer custom installation options

tetsuos · Oct 19, 2013

I am thinking of doing a subwoofer install in my 2.5 roadster, but the options seem limited. Has anyone ever tried creating a subwoofer enclosure using the area under the door sills/side panels? The space between the carbon fiber body panels and the roadster frame/tub seems like an ideal space, but I'm not sure if there are any drivers small enough to fit in there. The empty space would be stuffed with subwoofer filler material.

The overall strategy would be to go small, but create left and right subs for an improved effect. Is this a crazy idea?

asgard · Oct 20, 2013

tetsuos said:
I am thinking of doing a subwoofer install in my 2.5 roadster, but the options seem limited. Has anyone ever tried creating a subwoofer enclosure using the area under the door sills/side panels? The space between the carbon fiber body panels and the roadster frame/tub seems like an ideal space, but I'm not sure if there are any drivers small enough to fit in there. The empty space would be stuffed with subwoofer filler material.

The overall strategy would be to go small, but create left and right subs for an improved effect. Is this a crazy idea?

I had two recommendations of installs on Roadsters, by Sound Innovations in Union City, CA and Dietsch Werks. Both in the back of the passenger footwell. Make sure they don't cut into the aluminum. Drilling to screw in the subs is ok.
This is about the only reasonable place, unless you want to drop the battery pack and install them in the back where the factory ones are.

wiztecy · Oct 20, 2013

When I was interested in putting a sub in my 1.5 I found a 100watt powered sub that would fit perfectly behind the drivers seat on the back wall.

AltPowr · Oct 20, 2013

tetsuos said:
The overall strategy would be to go small, but create left and right subs for an improved effect. Is this a crazy idea?

Keep in mind low frequencies are non-directional, so you don't need two, and don't need them on both sides. One driver somewhere in the interior will be heard properly everywhere.

PokerBroker · Oct 20, 2013

I believe there is a Lotus Elise enclosure out there that fits in the passenger footwell of the Roadster and still leaves a decent amount of footroom.

bart513 · Oct 20, 2013

Wiztecy,
Do you recall which model it was?
Thanks!

Zextraterrestrial · Oct 20, 2013

I had 2 6" bazooka speakers in a 914 porsche strapped right in front of the seats. Lots of Bass for such a small car. Not sure if there is the same room in a Roadster?

asgard · Oct 20, 2013

Zextraterrestrial said:
I had 2 6" bazooka speakers in a 914 porsche strapped right in front of the seats. Lots of Bass for such a small car. Not sure if there is the same room in a Roadster?

There is. I have seen an install on the roadster (and Lotus Elise). The Roadster has a deeper footwell.
The two speakers have to be staggered diagonally, or you can stick a monster 9 inch there.
Here is how it looks:
http://www.lotustalk.com/forums/f133/speaker-box-footwell-13365/

And here is the monster 9 inch sub:
http://teamspeed.com/forums/aston-m...se-subwoofer-install-jl-audio-stealthbox.html

thefortunes · Oct 21, 2013

Doesn't the 2.5 already have a sub? Mine sure sounds like it.

Doug_G · Oct 21, 2013

2.0's have a subwoofer if you have the upgraded stereo package. I believe it's the same for 2.5's.

augkuo · Oct 21, 2013

PokerBroker said:
I believe there is a Lotus Elise enclosure out there that fits in the passenger footwell of the Roadster and still leaves a decent amount of footroom.

The subwoofer amp used was the Rockford Fosgate PBR300x1 - http://www.rockfordfosgate.com/products/details/pbr300x1
The enclosure houses a JL 8" subwoofer.

Here's a picture of mine - you can see how much space it takes up by the driver's footwell picture on the right.

bart513 · Oct 21, 2013

I'm pretty sure if you have the infotainment package there is a subwoofer as part of the 7 speaker system.

wiztecy · Oct 21, 2013

bart513 said:
Wiztecy,
Do you recall which model it was?
Thanks!

I don't recall the exact model, but this is the same idea:

Focal Integration IBus 20 Compact 75-watt powered 8" subwoofer at Crutchfield.com

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Subwoofer custom installation options

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