Need Some Opinions

[C.Sanchez.A]

Ok I've been working on this design for a while and have now found one that works.

It's built for 12" Xl's with a Audioque 2200D for each sub, running around 2000 RMS each.

Each box is 1.5^ft after displacement as recommended by the DC website.

4" round port tuned at 32hz.

A little more info:

- It was designed to fit in a 1994 Mazda B3000.

- The ports are external do to the space restrictions in my truck.

- The reason for the odd shape, again space restrictions in my truck.

- The "feet" under each box is for support. There is a little step against the back wall of the cab.

What do you think?

Edited January 12, 2011 by C.Sanchez.A

[Autruche]

Definitely needs way more port.

[C.Sanchez.A]

Definitely needs way more port.

what do you mean?

[Autruche]

what do you mean?

Your port area is way too small. If you did a slot port, you should do about 16-20 square inches of port area per cubic foot. If you do round ports, like 14-18 square inches per cubic foot.

Edited January 12, 2011 by lAutruche

[C.Sanchez.A]

Your port area is way too small. If you did a slot port, you should do about 16-20 square inches of port area per cubic foot. If you do round ports, like 14-18 square inches per cubic foot.

I was told once to do 12-16 square. The 16-20 square and 14-18 round does sounds better.

The only down side to doing 2 - 4" round is I don't have the room.

Edited January 12, 2011 by C.Sanchez.A

[Autruche]

I was told once to do 12-16 square. The 16-20 square and 14-18 round does sounds better.

The only down side to doing 2 - 4" round is I don't have the room.

Those XLs love port area. If you do 2 4" round ports for each box it would be better. Or even just 1 6" round port per box.

I would honestly just make one common chamber box with a large slot port and strap the AQs or just get an AQ 3500D.1 and be done with it, lees hassle with 1 amp.

[C.Sanchez.A]

Those XLs love port area. If you do 2 4" round ports for each box it would be better. Or even just 1 6" round port per box.

I would honestly just make one common chamber box with a large slot port and strap the AQs or just get an AQ 3500D.1 and be done with it, lees hassle with 1 amp.

I don't have much room to play with. The program I'm using says I need a 45" long 6" round port or a 25" long square 16 square inch port.

I'm going to see if I can maybe squeeze the round one in but not likely.

Edited January 12, 2011 by C.Sanchez.A

[C.Sanchez.A]

did the calculations and the round port is way to long to fit.

[Sanitarium]

these subs do love port area but don't let anyone tell you they NEED it.

If you can't work 400 square inches of port for a 1 cube box, then just dont do it lol.

that 16 square inch port per chamber will be fine.

[C.Sanchez.A]

these subs do love port area but don't let anyone tell you they NEED it.

If you can't work 400 square inches of port for a 1 cube box, then just dont do it lol.

that 16 square inch port per chamber will be fine.

But your still saying big is better, because I can get a 20 square inch square port in. It's tight but it fits.