Help me reverse engineer this box!!

[rc10mike 10+ year member]

Im not to experienced w/ ported enclosures so a little help here. Its a dual 12, single slot port design, with a few small internal braces.

Its external dimensions are (made with .75 mdf)

32"w

14"H

22"D

Slot port dimensions are

3"w

12.5" H

20" L

I just want to figure out the tuning freq.

Click to read more...

 

[edzy 10+ year member]

throw the specs in here.

http://www.reaudio.com/speaker_box/LPort_Box_Calc.html

 

[rc10mike 10+ year member]

Thanks!

 

[PV Audio 5,000+ posts]

Yeah, throw them in there and get the wrong answer. If you don't have an answer by tomorrow, PM me and I'll figure it out for ya.

 

[ngsm13 5,000+ posts]

After port, sub, brace displacement ~3.8cubes NET @ ~32hz...

Decent box for 2 12's... maybe need a little more port...

nG

 

[PV Audio 5,000+ posts]

Nice save jizz'em, I'm too busy with ****ing differential equations shit to worry about that. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[dragnix 5,000+ posts]

Yeah, throw them in there and get the wrong answer. If you don't have an answer by tomorrow, PM me and I'll figure it out for ya.

it's not too bad, seems fairly accurate to me

 

[ngsm13 5,000+ posts]

Nice save jizz'em, I'm too busy with ****ing differential equations shit to worry about that. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Man fuck diffy Q...

nG

 

[PV Audio 5,000+ posts]

I've seen answers off by 40%. And if you're calculating a 1.25 cubic foot box to 32hz, I trust you see that 40% error there is unacceptable.

 

[PV Audio 5,000+ posts]

Man fuck diffy Q...
nG

You're doing engineering too, correct?

 

[dragnix 5,000+ posts]

hmm...but i hate doing it by hand //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[PV Audio 5,000+ posts]

hmm...but i hate doing it by hand //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif Touche

 

[dragnix 5,000+ posts]

shitttttt....i gotta take differential after calc 2 and 3 //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[ngsm13 5,000+ posts]

You're doing engineering too, correct?

Yeah, just recently re-enrolled changed my major to BioMed...

nG

 

[lil_italy773 10+ year member]

hey rc10mike were u from in jax? i lived there for a year pablo ave in jax beach. arlington?