Please recommend enclosure for this woofer

Cro maniac · 2nd August 2004, 07:08 PM

Parameters:
Qes = 0,364
Qms = 3,03
Qts = 0,325
Pe = 120W
dia = 12"
SPL = 90dB
Re = 6,7 ohms
Z = 8 ohms
Mms = 38,4 g
Hcoil = 17mm
Hgap = 7mm
Fs = 27Hz
Bl = 13,5 Tm
Sd = 0,0531 m^2
Vas = 260 l
Xlim = +/-13mm

I have access to this pretty cheap speakers, and want to make subwoofer which goes really deep. I want response from 20 to not higher than 60 Hz.
What box would you recommend ?
Will I get less distortion if I put the drivers in push-pull configuration ?

Thanks !

kelticwizard · 2nd August 2004, 07:57 PM

If you want smooth response, 30 Hz is about as low as these will go. And that will be in a big, big box-about 7 or 8 cu ft.

BillFitzmaurice · 2nd August 2004, 08:30 PM

The best you can hope for here is an F3 at 35Hz from a 4.5 cu ft VB tuned at 33 Hz. Almost any driver that you want to run strong to 20 Hz will have to start off with an Fs lower than that.

The exception is a horn-loaded cabinet, which this driver could take down to 20 Hz no problem. Got room for a 14 foot horn?

SpyStyle · 4th August 2004, 12:22 PM

Do you have two?

Take a look at this coffee table horn (click 'plans' they are free)

http://www.decware.com/newsite/mainmenu.htm

Groovy?
Craig

2nd August 2004, 07:08 PM	#1
Cro maniac diyAudio Member Join Date: Feb 2004 Location: Zagreb, Croatia Blog Entries: 2	Please recommend enclosure for this woofer Parameters: Qes = 0,364 Qms = 3,03 Qts = 0,325 Pe = 120W dia = 12" SPL = 90dB Re = 6,7 ohms Z = 8 ohms Mms = 38,4 g Hcoil = 17mm Hgap = 7mm Fs = 27Hz Bl = 13,5 Tm Sd = 0,0531 m^2 Vas = 260 l Xlim = +/-13mm I have access to this pretty cheap speakers, and want to make subwoofer which goes really deep. I want response from 20 to not higher than 60 Hz. What box would you recommend ? Will I get less distortion if I put the drivers in push-pull configuration ? Thanks !

2nd August 2004, 07:57 PM	#2
kelticwizard diyAudio Member Join Date: Sep 2001 Location: Connecticut, The Nutmeg State	If you want smooth response, 30 Hz is about as low as these will go. And that will be in a big, big box-about 7 or 8 cu ft. __________________ "A friend will help you move. A really good friend will help you move a body." -Anonymous

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2nd August 2004, 08:30 PM	#3
BillFitzmaurice Banned Join Date: May 2004 Location: New Hampshire	The best you can hope for here is an F3 at 35Hz from a 4.5 cu ft VB tuned at 33 Hz. Almost any driver that you want to run strong to 20 Hz will have to start off with an Fs lower than that. The exception is a horn-loaded cabinet, which this driver could take down to 20 Hz no problem. Got room for a 14 foot horn?

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