What kind of precision ports do i want

[ArrizX 10+ year member]

I have a 15'' mtx 7500 sub I would like at 37hz. in a box ~3cubes.

What size port, and how long does it need to be?

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[IDSkoT 5,000+ posts]

I have a 15'' mtx 7500 sub I would like at 37hz. in a box ~3cubes.
What size port, and how long does it need to be?

Assuming by precision you mean aeroport... (Round)

I'd say either 1-6" diameter, or 2-4" diameter.

You do the math for the length or go get WinISD Alpha and get it to do it for you.

If you mean a slot... I'd go between 2-3", or even 3.5 if you please.

Again, do the math yourself or get WinISD Alpha to do it for you, if you're lazy.

 

[adas Pro Seller]

If you want it to slam and go for more loud then smooth, 1 6" areo 15" long.

I'm guessing by 37hz tuning, that'll suit your listening nicely

 

[ArrizX 10+ year member]

No its in a slot box at the moment, terribly made one at that.

I have a box from an older sub that was sealed. Its perfect, and since its sealed it would be easiest to drop in some aero ports. And yes, I did mean aero sorry about that.

Ill look into that program, thanks.

Anyone else happen to know off hand, lol?

 

[ArrizX 10+ year member]

If you want it to slam and go for more loud then smooth, 1 6" areo 15" long.
I'm guessing by 37hz tuning, that'll suit your listening nicely

Perfect.

Yeah, the entire setup is my friends since I just sold my nice amp because i needed the cash.

But anyways, yeah its only getting like 150-175w. Bass boost is all the way up and its not even creating distortion much less a clipped signal. Its an Xplod.................//content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif

But its all I have. So i'm doing what i can, and a new box ported higher will be real nice. Not like its a great sounding sub anyways.