Port Size and Length

[PokeFan 10+ year member]

lol, thanks guys. I really do appreciate the effort you put in Nissan. Thanks bud

 

[BEAVER.989 10+ year member]

38x16x3.5t/10b

Add a 4" port that is 15.75" long and you'll end up with 1.373cft. NET after port and sub displacement with a 36hz tune.

It actually looks really good on the graph... models pretty flat and should have pretty decent sound quality. Be sure to use a SSF set to somewhere in the neighborhood of 30hz to prevent over excursion on the low lows.

Happy building. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[PokeFan 10+ year member]

Beaver thanks I appreciate it. 1.373 is pushing the minimum enclosure is there any way at all to push that to 1.5? Or do you think yours would be fine?

Oh, and what is SSF? sorry....

 

[BEAVER.989 10+ year member]

I think it's fine, but if you really want to go taller I'll rework it.

 

[NissanKicker 10+ year member]

HAHAHA!... I know right!

 

[BEAVER.989 10+ year member]

Increase the height to 17.5" and reduce the port to 14" and you'll have 1.6cft. NET @ 35hz... this looks even better, if it'll fit.

SSF=Sub Sonic Filter

 

[PokeFan 10+ year member]

Thanks Beaver I appreciate it! It will fit it's the cargo area of a Jeep, no problems there. Quick question, Does the placement of the subs to the port chamber matter? Could I have the subs on either side of the box and the port coming out one side or if the sub is on the right should the subs be on the right as well?

 

[BEAVER.989 10+ year member]

I would stuff the subs all the way to one side of the enclosure and fire the port out the opposite side. If they're going to be rear firing I'd probably hug the drivers side with the subs and vent out the passengers side, FWIW.

 

[PokeFan 10+ year member]

Alright, So how does this look?

 

[BEAVER.989 10+ year member]

I don't think the box is deep enough at the top to allow you to mount the sub that high. I'd put 'em low in the box, myself... otherwise, nice.

 

[PokeFan 10+ year member]

I keep forgetting that. *Updated*

Where can I find a SSF? Everything I've been able to come up with is integrated into an amp already.

I also found this,

http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=268-352

Anyone ever used these or have any suggestions for something else?

 

[BEAVER.989 10+ year member]

To the best of my knowledge the only way you'll get a ssf is to buy an amp with that feature... I could be wrong, though.

Otherwise, depending on the rest of your set-up, you could set the x-over on the head unit at 30/24db HP and then use the amps x-over for LP duty... Like I said, it depends on the capabilities of the rest of your gear.

Depending on the type of music you listen to, you may not even need a ssf...

 

[PokeFan 10+ year member]

Ok, at the risk of sounding stupid. How would I cut the angles on the top and bottom pieces?

 

[Perfectionist 10+ year member]

hey pokefan have you come right with your enclosure details? me personally i would have done a few things different but in this game its all about what you want. to cut the angles you must use a table saw, a circular saw or a jig saw. otherwise you can ask the guys you buy the timber from to cut it to size for you with the angles. hope that answers your question

 

[PokeFan 10+ year member]

Yea, it's pretty much set. This one was basically tuned by beaver but I'm always up for suggestions.

I've got access to a table saw but couldn't figure out how to cut those angles with it. I mean the one that runs the length of the boards on the top and bottom not the long angles of the side pieces.