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Noobie with Airspace problem


Jonathon Trahan

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Posted

Look at the box in the picture. That is the box. It looks to me like it is a 1.9 cubic foot box. Do you know how large a 5.7 cubic foot box is? (1.9 x 3) There is no way in hell that box is 5.7^3.

And it clearly states "total volume", not volume per chamber.

It looks like it could be 3.8 cubes. Doesn't look small enough to only be 1.9 total. But there is little context to the image.

If it's 1.9 total there isn't enough airspace to make it ported. You could play around with some 2x4 or stuffing to see if it makes any improvements though.

My RE MT 18" wall build Former build, farewell beloved wall.In progress, Toyota Starlet build

This forum has a massive boner for ridiculous electrical upgrades.

Posted

Look at the box in the picture. That is the box. It looks to me like it is a 1.9 cubic foot box. Do you know how large a 5.7 cubic foot box is? (1.9 x 3) There is no way in hell that box is 5.7^3.

And it clearly states "total volume", not volume per chamber.

It looks like it could be 3.8 cubes. Doesn't look small enough to only be 1.9 total. But there is little context to the image.

If it's 1.9 total there isn't enough airspace to make it ported. You could play around with some 2x4 or stuffing to see if it makes any improvements though.

Are we looking at the same box? Do you see the curved portion by the wheel wells? The cutouts are 10 inches, compare the cutout to the depth of the box. I sit by my statement.

Posted

Look at the box in the picture. That is the box. It looks to me like it is a 1.9 cubic foot box. Do you know how large a 5.7 cubic foot box is? (1.9 x 3) There is no way in hell that box is 5.7^3.

And it clearly states "total volume", not volume per chamber.

It looks like it could be 3.8 cubes. Doesn't look small enough to only be 1.9 total. But there is little context to the image.

If it's 1.9 total there isn't enough airspace to make it ported. You could play around with some 2x4 or stuffing to see if it makes any improvements though.

Are we looking at the same box? Do you see the curved portion by the wheel wells? The cutouts are 10 inches, compare the cutout to the depth of the box. I sit by my statement.

Pretty sure the image is with 2 12" cutouts, it doesn't change no matter what selections you choose. Unless it's a close fit for 12" subs.

Guess it is pretty damn shallow either way though.

Should be ok as it is then, unless OP can be bothered mucking around with 2x4 or stuffing.

My RE MT 18" wall build Former build, farewell beloved wall.In progress, Toyota Starlet build

This forum has a massive boner for ridiculous electrical upgrades.

Posted

Look at the box in the picture. That is the box. It looks to me like it is a 1.9 cubic foot box. Do you know how large a 5.7 cubic foot box is? (1.9 x 3) There is no way in hell that box is 5.7^3.

And it clearly states "total volume", not volume per chamber.

It looks like it could be 3.8 cubes. Doesn't look small enough to only be 1.9 total. But there is little context to the image.

If it's 1.9 total there isn't enough airspace to make it ported. You could play around with some 2x4 or stuffing to see if it makes any improvements though.

Are we looking at the same box? Do you see the curved portion by the wheel wells? The cutouts are 10 inches, compare the cutout to the depth of the box. I sit by my statement.

Pretty sure the image is with 2 12" cutouts, it doesn't change no matter what selections you choose. Unless it's a close fit for 12" subs.

Guess it is pretty damn shallow either way though.

Should be ok as it is then, unless OP can be bothered mucking around with 2x4 or stuffing.

Might pick up some polyfill and some wood and mess about with it. Before i do that i need to find a rattle i have in my hatch thats absolutely killing me X_X

Posted

Polyfil makes the box seem bigger not smaller.

Yeah but doesn't hurt to experiment. A bigger box plays lower and is more efficient.

It's already big, but it's kind of a waste to just fill box volume with dead space. Just got to be mindful of excursion.

Best option would be another sub/bigger subs. But that's a bit more than some $10 experimentation.

My RE MT 18" wall build Former build, farewell beloved wall.In progress, Toyota Starlet build

This forum has a massive boner for ridiculous electrical upgrades.

Posted

Box looks like 2 cube net to me. Run your pair of 10s sealed and you'll be happy enough. The box is a bit to narrow to effectively port it IMO and sealed box is VERY forgiving if you're off on "optimum" airspace.

Posted

Run it sealed, you should like it like that. Come back later to tell us how it sounds, how you like it. We'll see if you need to add something in the box to reduce box volume.

Or get a ported box made for your sub, and for your car.

black BMW X1 2.0 l 192 hp

OEM head unit, Amplifiers :  Audison AP 8.9 with integrated DSP and Ampere Audio 1200.

Focal ES 100 K in front doors, and Dayton RS 180 for midbass under the front seats.

2 SSA DEMONS 10" subs, in a sealed box. SecondSkin Damplifier on front doors, and Luxury Liner Pro for the cargo area.

 

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