Box calculation, Need advice

watti · 27th December 2009, 11:39 AM

Hello! im pretty new here and this is my first post. Anyhow, im werry new to sound, and i got some old speakers from a friend to expriment on.

i have tryed to build a box now, a 116l big and 30Hz is the port on. But well i doesnt sound like i whant to

So i wonder if some1 whit more experiens like to calculate a box for me? I want to use it for indoor usage. And ye, i got 2 drivers so i can use Isobark, if it works?

Here is the parameters:

Pyle Pro series II 15"

Code:

PW15100/4
FS-34HZ
QMS-7.98
QES-.41
QTS-.39
VAS-6.37 CU FT
XMAX-.30 IN
VD-39.8 CU IN
ZMIN-3.2 OHMS
RE-2.8 OHMS
SPL-94 DB

Ron E · 27th December 2009, 02:50 PM

Quote:

Originally Posted by watti

i have tryed to build a box now, a 116l big and 30Hz is the port on. But well i doesnt sound like i whant to

So are both drivers in that one box? What are your box and port dimensions?
What exactly is it you don't like about the sound?

watti · 27th December 2009, 02:52 PM

Well i think i build it wrong, Just like some advice on how you wold calculat it, See if i calculated rigt and so. Just an experties adivce

If someone got 5min to calculat it for me..

Thanks alot!

//Simon

gaston_pdu · 27th December 2009, 03:56 PM

hi there
to calculate a box you have two options:

google all the formulas and calculate, or...
get a program to do it for you.

you put all the parameters of the woofers in the program, and it tells you how your box should be built.

try WinISD, it's free and it's simple what makes it a good starting point. Usually simpler things in paper delivers simple models to construct.

hope to have helped.

cheers
gaston_pdu

27th December 2009, 11:39 AM	#1
watti diyAudio Member Join Date: Dec 2009	Box calculation, Need advice Hello! im pretty new here and this is my first post. Anyhow, im werry new to sound, and i got some old speakers from a friend to expriment on. i have tryed to build a box now, a 116l big and 30Hz is the port on. But well i doesnt sound like i whant to So i wonder if some1 whit more experiens like to calculate a box for me? I want to use it for indoor usage. And ye, i got 2 drivers so i can use Isobark, if it works? Here is the parameters: Pyle Pro series II 15" Code: PW15100/4 FS-34HZ QMS-7.98 QES-.41 QTS-.39 VAS-6.37 CU FT XMAX-.30 IN VD-39.8 CU IN ZMIN-3.2 OHMS RE-2.8 OHMS SPL-94 DB

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27th December 2009, 02:52 PM	#3
watti diyAudio Member Join Date: Dec 2009	Well i think i build it wrong, Just like some advice on how you wold calculat it, See if i calculated rigt and so. Just an experties adivce If someone got 5min to calculat it for me.. Thanks alot! //Simon

27th December 2009, 03:56 PM	#4
gaston_pdu diyAudio Member Join Date: Feb 2005 Location: Paysandu	hi there to calculate a box you have two options: google all the formulas and calculate, or... get a program to do it for you. you put all the parameters of the woofers in the program, and it tells you how your box should be built. try WinISD, it's free and it's simple what makes it a good starting point. Usually simpler things in paper delivers simple models to construct. hope to have helped. cheers gaston_pdu