Enclosure Fabrication

[SeductiveSounds 0]

I am planning a fairly large system as my next project.

I'm curious to know what you guys think of oddly shaped enclosures.

I'm not talking about the plain jane square boxes, I'm talking about enclosures constructed

out of nearly 100% composite materials.

You know the ones made to fit oddly shaped areas such as the sides of trunks or in spare tire wells.

I am planning on 2 Fi.BTL15's and in order to get them in and still have room for amps

I am going to need to use fibreglass for a very large portion of the box to maximize the

enclosure size as well as the usable trunk space for amps and such.

I am under the impression that shape doesnt matter nearly as much as the size.

Please enlighten me if I am wrong.

How important is the shape of the enclosure?

TIA

[helotaxi 46]

Unless your goal is to be a loud as possible on the meter and you're trying for every last 10th, the shape isn't very important at all. If you're talking a sealed enclosure, the shape doesn't matter either.

[ramos 2]

Unless your goal is to be a loud as possible on the meter and you're trying for every last 10th, the shape isn't very important at all. If you're talking a sealed enclosure, the shape doesn't matter either.

But what about those 20 foot long standing waves inside a square 1cuft enclosure ??? LMAO

[helotaxi 46]

Well yeah, except for those...that's why you use egg crate foam and deflex pads inside your sealed enclosures though...and double up the MDF on all walls with deadener between...and need twisted pair speaker wire...

[KU40 173]

I think it will be fine. Many people have done totally fiberglass enclosures. Just brace it a little and it will be fine. Remember that curves add strength to fiberglass enclosures so it's good for them to have some shape to them.

[SeductiveSounds 0]

I just want to use as much space in my trunk as I can.

I think it'll be interesting to get a 6-8ft^3 into my sentra.

I was going to use the spare tire well for the batteries (3-4) and then

use the sides and back of the trunk for the sub enclosures.

Then find a home for the amps.

I have it all pictured in my head, and its far too difficult to explain it.

this is how it currently sits (sort of, its getting re-done)

the box is 5ft^3ish sealed, box doesnt go all the way to the outside edges

its a drop in, its only 36" wide. I'll be able to get a bunch more if I utilize the

sides of the trunk.

its so nice being an installer and not having time to finish your own car.

I'm planning on doing fibreglass woven fiber for the shape and structure,

then either a full carbon or a carbon kevlar weave as the top finish layer.

should be good right?

Edited June 22, 2008 by SeductiveSounds

[ANeonRider 3]

I'm using all 12ft^3 in my Sentra's trunk

[helotaxi 46]

I'm planning on doing fibreglass woven fiber for the shape and structure,

then either a full carbon or a carbon kevlar weave as the top finish layer.

should be good right?

Woven cloth sucks for going around curves if you're using a heavy enough cloth to build up any thickness. Trying to do the whole thing inside the trunk will be VERY difficult because at some point you have to enclose it meaning that you have to finish working from inside the sub cutouts. Sanding it will be a real turd, and it will have to be perfectly smmoth to get a carbon fiber finish layer on it. Not to mention that if you want the carbon fiber layer to come out right, you have to vacuum bag it which can't be done inside the trunk. It would look cool but it would be basically impossible to pull off.

[SeductiveSounds 0]

I'm using all 12ft^3 in my Sentra's trunk

Although IB is a great thing, isnt going to work for me.

I'm planning on doing fibreglass woven fiber for the shape and structure,

then either a full carbon or a carbon kevlar weave as the top finish layer.

should be good right?

Woven cloth sucks for going around curves if you're using a heavy enough cloth to build up any thickness. Trying to do the whole thing inside the trunk will be VERY difficult because at some point you have to enclose it meaning that you have to finish working from inside the sub cutouts. Sanding it will be a real turd, and it will have to be perfectly smmoth to get a carbon fiber finish layer on it. Not to mention that if you want the carbon fiber layer to come out right, you have to vacuum bag it which can't be done inside the trunk. It would look cool but it would be basically impossible to pull off.

I've worked with all sorts of composites, and if done propperly you dont have to vacuum bag.

You'll have to sand it like a mofo, but it can still come out looking very good.

Edited June 22, 2008 by SeductiveSounds

[Adrian_D 520]

Well yeah, except for those...that's why you use egg crate foam and deflex pads inside your sealed enclosures though...and double up the MDF on all walls with deadener between...and need twisted pair speaker wire...

You forgot running the power wire and RCA's on the opposite sides of the car

[helotaxi 46]

Well yeah, except for those...that's why you use egg crate foam and deflex pads inside your sealed enclosures though...and double up the MDF on all walls with deadener between...and need twisted pair speaker wire...

You forgot running the power wire and RCA's on the opposite sides of the car

Well that's obvious...

Don't forget that you have to keep the ground wire aboslutely as short as possible and you have to spend at least $100 per RCA and a line driver makes your amp not have to work as hard...

[SeductiveSounds 0]

How does any of this really apply to my question?

Cuz I really dont think it does.

I just wanted to know how important the shape of the enclosure was to the performance of a sub.

I always thought that so long as the enclosure had the correct airspace it would be ok.

[Adrian_D 520]

We were just goofing around

Unless your goal is to be a loud as possible on the meter and you're trying for every last 10th, the shape isn't very important at all. If you're talking a sealed enclosure, the shape doesn't matter either.

I think that ^ is what you wanted to know.

[SeductiveSounds 0]

I have no doubt that it'll be loud a pair of BTL15's on 2 SAZ-3000d's

its not really a comp car, more of a loud daily driver

The kicker stuff just isnt cutting it anymore, and I need a change anyways.

[audio-neon 34]

[audio-neon 34]

More pics can be found here. I have used a composite bottom with wood build up in my sq car.

http://www.soundsolutionsaudio.com/forum/i...showtopic=18495

[SeductiveSounds 0]

thats what the bottom portion of my trunk looks like now.

i'm just wondering if i did up the wheel wells and around the fenders to maximize the enclosure size, how much it will affect things

[audio-neon 34]

thats what the bottom portion of my trunk looks like now.

i'm just wondering if i did up the wheel wells and around the fenders to maximize the enclosure size, how much it will affect things

Honestly, it probably wouldn't affect things at all. I would toss a layer of sound deadener on the sheet metal before glassing, and glass it thick. You don't want your sheet metal vibrating any more than it currently is.

[ramos 2]

You know you can save a lot of mat by adding stiffening ribs ( be it strips of wood or rope ) between a couple layers

[afarfsin 0]

I'm curious where you're located. I knew a guy a while back who said he was going to start his own company called Seductive Sounds.