kaosmoon

This will work with most 12" drivers. It was designed for a customer of ours today for a 13Ov.2 subwoofer.

Arm designed to go over wheel opening to minimize width.

Figured some folks here could use it as well.

Here is the link ; http://www.elementaldesigns.com/scio...ustom_1_12.pdf

this is a PDF so you will need to have acrobat to open it.

Ben Milne
Elemental Designs

failed_ethics

Hey, its my box! So pretty.

failed_ethics

Also, this was designed to be used with the storage compartments out of the vehicle.

SuperCrunchyAction

Looks good ben. What degree are those angles cut?

kaosmoon

69 D
111 D

Ben

Jmarks1998

Any pics of the box actually in the xB?

kaosmoon

This was just designed for a customer, that one we won't have unless they send us pics. Have to use your imagination to some extent

Jmarks1998

Failed ethics is this your box? do you have pics of it in your xb?

TXboxdriver

no, no it won't "work" with most 12" drivers

it will work with whatever you built it for
every speaker is very very different
what if my 12's won't even go below 50Hz???
get a box built for the speakers you have
the port size/length is never gonna be the same
blah blah blah blah blah

kaosmoon

the box is tuned to a frequency not the speaker.

If your going to say I'm wrong at least post some information explaining to people why. That's not really fair to correct me to promote a stigma that people think they must make entirely new vents for speakers.

For example. If you download Freeware software WIN ISD (I mention this not becuase it's the best but becuase it's free and everyone can download it to verify what I'm saying here).

It can be downloaded at linearteam.org. My personal opinion on the program is worthless for car audio FR but its great for figuring vent lengths (exactly what we'll be doing here).

Now I've picked randomly 4 subwoofers with all different box requirements per the manufacture and very different specifications. These speakers are all preloaded into the WIN ISD database so you can easily confirm this.

I've randomly picked these 12" subwoofers -
Image Dynamics IDQ D2
Infinite Perfect 12.1d
JL Audio 12W3-D4
DLS UR12

All of these speakers will perform different in different boxes but this isn't what we are looking at. We are looking at the boxes.

Now go to the box tab, enter 1.5cF and a tuning frequency of 30Hz in each box. Make sure you don't enter any trailing numbers as it will change vent length.

Now switch over to the 'vents' tab. Use a very generic vent, single 4.02" vent (mainly becuase I think it defualts to this) and you'll see a vent length of 22.29" for every single one of these subwoofers.

Thus. All 4 of these subwoofers, in a 1.5cF vented enclosure tuned to 30Hz, use the exact same vent length. Keep plugging speakers in if you like. These were chosen becuase they are preloaded into the program and you can easily confirm everything I've just typed.

Then try say 4cF at 40hz (as a extreme opposite) and you'll vent length at 2.38" for each and every one of these speakers.

The box is tuned to a frequency, not the speaker. All these speakers will perform differently in this box, but to anyone telling people they all require different vent lengths becuase they are different speakers is misinformed.

You can drop just about any 12" Subwoofers into this box. If you've got a subwoofer that doesn't go below 50hz you don't have much of a subwoofer. All these speakers will retain a different FR in this enclosure but that's absolutly no reason to vent length and enclosure size won't work if your driver works well in small vented enclosures.

Now this is not to say every single speaker in the world in 12" form will perform up to it's optimum level in this small of a box. However it's also true that if your looking for a small enclosure, vented, this could work rather well for you.

But specifically the size/length of the port will be the same. Vent length by testing the short expirement above will show you is determined by the volume of the box, and the tuning you desire, not the speaker. Any speaker you throw in that box will still be tuned to 30Hz. even put a 10" driver with criteria of 1.5cF tuned to 30Hz in that program and you will get, 22.29" for a vent length (as long as your vent diameter is the same).

If you have any questions feel free to call me at the shop today @ 319.665.6350

Ben

failed_ethics

I love it when that happens.

Nope, no pics yet. Give me a week or two and I'll have it done, can't stand my sealed box for too much longer, the sub broke the terminal cup that I was using and now I'm getting some serious noise from it.