fusion powerplant 15in sub box design help

[riddla 10+ year member]

Hi all, Im new here. great site.

Ive just bought a fusion powerplant 15in subwoofer of ebay & want to built a box, I can build one but have no idea as to how to get the right size etc & ports.

I wanna go ported but can you help me with building it by giving me lenght x width x height & slot port size please. I have posted a link here with all the reccommended info on the sub & recommended box size.

I want really low bass from this sub so want to tune it really low as possible, thanks

http://www.fusioncaraudio.com/products.php?region=3&action=view&product_id=31

Click to read more...

 

[mazdakid 5,000+ posts]

you should probably tell us the dimensions you have to work with before building the box

 

[riddla 10+ year member]

ok, im not great with mm only centimetres, sorry.

370 mm heigtht

834 mm width

415 mm top depth

this is what fits in my car perfect, this is for 2 12in subs in there original enclosure .

I can get a 15in in there height wise & can use the rest of the measurements above.

hope this helps ?

 

[rpfuror 10+ year member]

370 mm = 14.56 in, your going to have a hard time with that.

 

[riddla 10+ year member]

no, the 370mm is for a 12in. I can get a 15in in there. Those dimensions are for a double 12in box. Basically the I can go higher than 370mm as a 15in will fit. The rest of the dimensions are a perfect fit.

I can go deeper depth wise but not length if you get me now, cheers

basically, I want a sub box design for the dimensions given but can add more height for the 15in & more depth but not length

 

[rpfuror 10+ year member]

This will suite your needs, driver up ports to the side.

3 cu/ft @ 30 Hz w/ 2 x 4" ports @ 22"

So, you can point the driver back then (I designed this before I saw your reply.

 

[WantedIsHere]

Hi all, Im new here. great site. Ive just bought a fusion powerplant 15in subwoofer of ebay & want to built a box, I can build one but have no idea as to how to get the right size etc & ports.

I wanna go ported but can you help me with building it by giving me lenght x width x height & slot port size please. I have posted a link here with all the reccommended info on the sub & recommended box size.

I want really low bass from this sub so want to tune it really low as possible, thanks

http://www.fusioncaraudio.com/products.php?region=3&action=view&product_id=31

... join date 2003... lol only bout 4 years new eh....

 

[riddla 10+ year member]

wow that looks great, cheers. I did prefer to have the port facing the same way as the sub, can you do a design for that please. I dont mind even trying a slot port design. Im capable,.

?

 

[riddla 10+ year member]

also wat is that design tuned to ?

 

[rpfuror 10+ year member]

3 cu/ft @ 30 Hz

You can get somewhere around 2.5 cu/ft @ 33Hz with a slot port.

 

[riddla 10+ year member]

pleaze reply to previous questions ,

also, if I have the ports on the sides, they will be 2 close to the walls in my boot

 

[riddla 10+ year member]

cheers for that, if the ports are to close to the walls, what are the effects, you really know yur stuff man,

 

[rpfuror 10+ year member]

Previous questions?? you mean what did I draw it with? the would be google sketchup...

Yea, you will want to have the port at least the diameter of the port away from a wall, so at least 4 " clearence.

When I get a chance I'll put together a slot port design based on the 2.5 @ 33hz.

 

[riddla 10+ year member]

ok, cool. Is there a big difference between 30hz & 33hz ?

 

[riddla 10+ year member]

also, is it possible to reduce the length & increase the depth to make up for the 4in of port space. Im gonner be the box based on ur dimensions, I really appreciate ur help,