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3 15s box help...


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1 hour ago, YukonXL04 said:

Which 15s? 10 cubes is about right on for 2 15s, but small for 3 15s.

Been told to stay around 9cuft (3cuft each) with the Contralto 15s and nothing is working out 🤣

 

Gotten so frustrated with it that just gave up...

 

 

And no computer now so can't download anything to help me figure out what I'm doing 

 

*shrug*

 

Also don't know if should go with 2 8in aeroports like originally planned or just slot port it.

 

This is my 2nd attempt at a box, first one didn't work out...

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2 hours ago, Thomas1994 said:

Been told to stay around 9cuft (3cuft each) with the Contralto 15s and nothing is working out 🤣

 

Gotten so frustrated with it that just gave up...

 

 

And no computer now so can't download anything to help me figure out what I'm doing 

 

*shrug*

 

Also don't know if should go with 2 8in aeroports like originally planned or just slot port it.

 

This is my 2nd attempt at a box, first one didn't work out...

I can get you some good numbers for a box. I'll look up the Crescendo specs and post numbers shortly. I prefer slot port myself. 

Are you limited to 18" high?

Also... 42 wide will be tight for a slot port design. Probably want to go aero port if you're limited to that width. I also can't find woofer displacement #'s anywhere. Lmk

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5 hours ago, DiBo said:

What 15's require 5ft³ each? Even zv5 and nsv4 15's with over 33mm of xmax only require 4.25 maximum. 5ft³ is too big for 15's. 

Specs are 44w, 19.5h, and like to stay around 30d...

 

I've really wanted to do an aeroport box for awhile now but I can't get it to work out right on that app hahaha...beening looking at 2 8in ports...

I do believe 3-3.5cuft per sub is the magic number...

 

Subs will be 2 inverted, one in the box so sub displacement is 0.23...

 

54348282_255792728702975_188408614568853

 

Where I'm stuck now...

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7 hours ago, DiBo said:

What 15's require 5ft³ each? Even zv5 and nsv4 15's with over 33mm of xmax only require 4.25 maximum. 5ft³ is too big for 15's. 

3 cubes sound pretty small for a 15. Most of the 15s I have used wanted between 4 and 5 cubes. But I'm also a big box guy too, cant stand a too small ported box

 

Fi, psi, DD... all want 3-5 for most of the 15s. I dont run sundown so I dont know.

18 Sierra 6.2 Z71 : 3 F8L's, DD M2a @.67, 1.95@33

05 TL build log SOLD

04 YukonXL : jvc kw-v51bt , RE 6.5c, 4 jbl gt5 12s, Memphis pr1000.1 5.5 cu.ft. sealed

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2 hours ago, Thomas1994 said:

Specs are 44w, 19.5h, and like to stay around 30d...

 

I've really wanted to do an aeroport box for awhile now but I can't get it to work out right on that app hahaha...beening looking at 2 8in ports...

I do believe 3-3.5cuft per sub is the magic number...

 

Subs will be 2 inverted, one in the box so sub displacement is 0.23...

 

54348282_255792728702975_188408614568853

 

Where I'm stuck now...

I talked to Crescendo audio today. They suggested 10ft³ with around 144in² of slot port. Less with aero. I can actually get a design with subs up Port back ( slot Port ran across the bottom). 

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