Optimized box

franky3 · 04-29-2009, 07:27 AM

hi, I should have 2 mag v4 soon and I want to start building my box they should have 870 from a DLS A3 @ 2ohm. I want to have it sealed I will use 1" mdf probably unless you want me to use thicker ? What size should be optimized for 2x mag v4 with how much pollyfil, should I create an angle at the back or the front of the box... I want to know how to create the best box for it !!

thank you in advance

Subwoofery · 04-29-2009, 11:39 AM

I would say common chamber @ 2.6cuft would be a great start (no need polyfill).
I would add some bracings and make a front double baffle. --> how I did mine

Maybe Nick will say otherwise.

What type of car is it going to? Trunk or hatchback?

Kelvin

***Electrodynamic*** · 04-29-2009, 01:49 PM

You can go up to 1.3 ft^3 each if you want to, but if you're limited on space I would stay right at 1 ft^3 each. The larger box will give you increased efficiency, so if you can go with 1.2 to 1.3 ft^3 each I would do it.

franky3 · 04-29-2009, 04:24 PM

It will go into my corolla 2003.. I got plenty of space in it... so what size should I really go then ? do I need a specific depth ? has for double bracing what is this ? should I go with a wedge type box or normal rectangular ?

***Electrodynamic*** · 04-30-2009, 10:18 AM

If you have ~900 watts going to the pair, I would go with 1.2 ft^2 per driver. If you're building a single box (a wedge shape will help it keep from falling over) you'll probably want to add a few braces on the big parallel sides. And make sure you seal it up with silicone and let it dry for 24 hours before putting the subs in. I also highly recommend lining the interior walls of the enclosure with fiberglass insulation to help dampen resonances and provide you with a smoother bass response.

franky3 · 04-30-2009, 04:15 PM

yes it will be only one big box. I go with 1" mdf ? double baffle ? and no pollyfil ?

thank you very much for the advise !!

***Electrodynamic*** · 04-30-2009, 10:01 PM

I wouldn't do double baffle with 1" thick MDF. That's a bit over-kill. I would brace the enclosure and then line the walls with fiberglass insulation. There's no need to use polyfill if you're box is going to be 1.2 ft^3 per driver with the fiberglass in there.

04-29-2009, 07:27 AM	#1 (permalink)
franky3 Junior Member Join Date: Apr 2009 Posts: 4	Optimized box hi, I should have 2 mag v4 soon and I want to start building my box they should have 870 from a DLS A3 @ 2ohm. I want to have it sealed I will use 1" mdf probably unless you want me to use thicker ? What size should be optimized for 2x mag v4 with how much pollyfil, should I create an angle at the back or the front of the box... I want to know how to create the best box for it !! thank you in advance

04-29-2009, 11:39 AM	#2 (permalink)
Subwoofery Member Join Date: Apr 2008 Posts: 96	I would say common chamber @ 2.6cuft would be a great start (no need polyfill). I would add some bracings and make a front double baffle. --> how I did mine Maybe Nick will say otherwise. What type of car is it going to? Trunk or hatchback? Kelvin __________________ Eclipse CD7000 ---VDH Integration Hybrid--- Milbert BaM-235ab ---Totem Acoustic Tress--- Focal K3P Highs & Mids ---VDH Jubilee Hybrid--- Audison LRx3.1k ---VDH Clearwater--- Focal K3P Midbasses ---Tara Labs RSC Sub--- Audison LRx3.1k ---VDH Magnum Hybrid--- One (1) Stereo Integrity Mag v.4 D2 sealed in 1.0cuft

04-29-2009, 01:49 PM	#3 (permalink)
*Electrodynamic* Stereo Integrity Owner Join Date: Mar 2008 Location: Charlotte, NC Posts: 1,148	You can go up to 1.3 ft^3 each if you want to, but if you're limited on space I would stay right at 1 ft^3 each. The larger box will give you increased efficiency, so if you can go with 1.2 to 1.3 ft^3 each I would do it. __________________ Electrodynamic Don't install suckage! Power handling is not a power requirement! Simon Eichenberger is the man.

04-30-2009, 10:18 AM	#5 (permalink)
*Electrodynamic* Stereo Integrity Owner Join Date: Mar 2008 Location: Charlotte, NC Posts: 1,148	If you have ~900 watts going to the pair, I would go with 1.2 ft^2 per driver. If you're building a single box (a wedge shape will help it keep from falling over) you'll probably want to add a few braces on the big parallel sides. And make sure you seal it up with silicone and let it dry for 24 hours before putting the subs in. I also highly recommend lining the interior walls of the enclosure with fiberglass insulation to help dampen resonances and provide you with a smoother bass response. __________________ Electrodynamic Don't install suckage! Power handling is not a power requirement! Simon Eichenberger is the man.

04-30-2009, 10:01 PM	#7 (permalink)
*Electrodynamic* Stereo Integrity Owner Join Date: Mar 2008 Location: Charlotte, NC Posts: 1,148	I wouldn't do double baffle with 1" thick MDF. That's a bit over-kill. I would brace the enclosure and then line the walls with fiberglass insulation. There's no need to use polyfill if you're box is going to be 1.2 ft^3 per driver with the fiberglass in there. __________________ Electrodynamic Don't install suckage! Power handling is not a power requirement! Simon Eichenberger is the man.

04-29-2009, 04:24 PM	#4 (permalink)
franky3 Junior Member Join Date: Apr 2009 Posts: 4	It will go into my corolla 2003.. I got plenty of space in it... so what size should I really go then ? do I need a specific depth ? has for double bracing what is this ? should I go with a wedge type box or normal rectangular ?

04-30-2009, 04:15 PM	#6 (permalink)
franky3 Junior Member Join Date: Apr 2009 Posts: 4	yes it will be only one big box. I go with 1" mdf ? double baffle ? and no pollyfil ? thank you very much for the advise !!

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