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Enclosure Discussion & Design Construction Help Have questions about enclosure design neeed some help thoughout your build, ask here.


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  #1  
Old 07-14-2011, 11:23 PM
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Default Whose brain doesnt hurt tonight? I need it.

Dilemma:

My original box for the 18 that is in my trunk right now was built into the trunk. Which is expected with a large amount of air space needed. When I built the box i placed the top plate into position with the sub already mounted, knowing that i would have to install the sub while in process of building the enclosure. It worked out perfectly and Ive had much success with the design.

807tubenut is designing my latest build which will consist of a much bigger 18" , with more motor force and more excursion. Knowing this the same box design will not work as the cone will hit the top of the trunk (more than 3 inches of excursion).

I want to be able to remove the sub whenever I want also. This box that is installed now contains a 20"x25" access panel on the front of the box so that i can wire the sub to 2 ohms or .5ohm whenever i want. I was thinking of incorporating this into the next design.

Possible solution:
(note: sub up, port back)

By using the access panel idea, i could remove the whole front baffle to access the box's interior. inside the box i was going to make the top baffle 1.5" thick with a "mounting ring" that is hollowed out but big enough to let the sub slip into place. essentially i am inverting the sub from inside the box.

This would give me an 1.5" inches to help with the excursion problem as well as giving me the possibility to access the sub and pull it out of the mounting ring.

My question to you:

Has anybody had this problem or does anyone have a creative way to fix my problem?
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Old 07-15-2011, 01:20 PM
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bump
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Old 07-15-2011, 01:22 PM
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3+ inches of excursion? holy tits what sub are you using
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Old 07-15-2011, 01:22 PM
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My brain is still hurting from the last time you called me
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Old 07-15-2011, 01:30 PM
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thats cause my d!ck was in ure ear. lmfao.

ya 3+ inches.

i sent a message to toolmaker and see what he could come up with
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Old 07-16-2011, 01:06 PM
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I would suggest using multiple smaller woofers to get rid of the hassle.. but its your call.

That tube guy is a nut!
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Old 07-16-2011, 11:48 PM
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18, no smaller lol.

Heres my solution
it sounds stupid but if i could get a piece made for this specific problem i could make trunk cars with 18" subs and everyday thing.

heres my rendering from my head:



What this does is it is a plate the bolts onto the top baffle with a ring that is suspended 3/4" down allowing me to slide the 18" into place to be screwed and supported. essentially im making scaffolding within the box. this allowing me access to remove the sub and remount it whenever i need to. its a big piece. the overall dimensions is 22"x 30"x1.5" the first level is 3/4" thick while the ring is 3/4" thick also.

Note: not added in picture but there are screw holes in the ring to screw through the product and into the basket. as well as screw holes within the product itself to be screwed into the baffle.
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Old 07-17-2011, 12:08 AM
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Quote:
Originally Posted by Craig28 View Post
3+ inches of excursion? holy tits what sub are you using


Custom TRF 18

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Old 07-17-2011, 12:20 AM
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mmm sexy. see why i need the bracing now... ugh lol and i have a feeling when toolmaker quotes me on this support piece its going to be around 400. i need to find a welder asap lol
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Old 07-19-2011, 02:01 AM
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heres the new design, way less metal, more versitile.



each half ring is on a 5" radius. they are 1.5" deep, while the 18" half ring with a 1/2" lip is only 3/4" deep.
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