Enclosure - will it work?

[thedivision 10+ year member]

Hello,

I'm building a box for a RE SE15.

34 hz

4 cu ft

ported

- 5" diameter

- 7.8" length

I need the port to fire in a hole in the rear deck (hence the placement) also be able to slide in the trunk.

Please let me know if it will work without producing excess port noise.

Also, is the port diameter big enough for 4 cu ft? Will it be hard to cut those angles?

Note, the sketch is really rough... just made it so you guys can get a good idea of the placement.

Thanks

Click to read more...

 

[lowriderram_95 10+ year member]

port looks a little short but then again I don't know alot about box building

 

[schrummy 10+ year member]

needs more port area

my .02

 

[DonH 5,000+ posts]

more port area! gona get port noise from that

 

[req 5,000+ posts]

why would you want a ported enclosure to fire in the opposite direction of the cone, unless you are compensating for the distance the cone wave will travel until it is reflected off the back of the trunk and aligns with the port though the rear deck opening you are wasting your time and will most likely cause cancellation.

and why are you trying to stuff a 15" sub in a small trunk that obviously wont fit in a normal enclosure where you should be more concerned with creating a low frequency setup that will fit into your vehicle and find some way for the waves to permeate the back seats.

 

[thedivision 10+ year member]

The port is not to spec in the diagram. It should be 5"x7.8"... is that still not enough?

This is going into a Lexus LS400, and there is plenty of trunk space. The reason the port is facing the opposite direction is because there is a hole in the rear deck (where the stock subwoofer was). A regular sealed/ported enclosure will not do much in my car because the cabin is very sealed off from the trunk (there is a gas tank in between).

I am attempting to fire directly into the cabin with this enclosure.

Please advise.

 

[IDSkoT 5,000+ posts]

The port is not to spec in the diagram. It should be 5"x7.8"... is that still not enough?
This is going into a Lexus LS400, and there is plenty of trunk space. The reason the port is facing the opposite direction is because there is a hole in the rear deck (where the stock subwoofer was). A regular sealed/ported enclosure will not do much in my car because the cabin is very sealed off from the trunk (there is a gas tank in between).

I am attempting to fire directly into the cabin with this enclosure.

Please advise.

No.

I like to use 6" as the minimum for a 15" driver. Or 2-4".

They only sell 3, 4, and 6" aeros anyway.

I don't even think they make 5" PVC.

 

[DonH 5,000+ posts]

No.
I like to use 6" as the minimum for a 15" driver. Or 2-4".

They only sell 3, 4, and 6" aeros anyway.

I don't even think they make 5" PVC.

corection! they do make 5" pvc. u just have 2 get it from a landscaping store i.e. not homedepot! trust me used 2 do landscaping as a summer job. but w/e Go with the 6' aero!

 

[IDSkoT 5,000+ posts]

corection! they do make 5" pvc. u just have 2 get it from a landscaping store i.e. not homedepot! trust me used 2 do landscaping as a summer job. but w/e Go with the 6' aero!

I stand corrected. //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[thedivision 10+ year member]

Is the enclosure type/design feasible?

... so long as the end of the port is 6" away from the walls/driver?

Pic of the sub for fun.

 

[DonH 5,000+ posts]

I stand corrected. //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif:laugh://content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif sry man couldn't hold back:laugh://content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[loud-n-low 10+ year member]

just removing the factory sub should allow more output without firing the port through

 

[shaneb 10+ year member]

Or put it back in unplugged and make it a passive radiator //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif