what are some sealed and ported box sizes you can suggest for this speaker ?

zuki · 4th March 2007, 08:47 PM

Here are the technical specs;
Dual 4
Revc = 7.2 Ohm
Fo = 20.5 Hz
Sd = 840.0 cm^2
Vas = 260 Ltr
Mms = 224 g
BL = 22.31 T.M
Qms = 2.76
Qes = 0.42
Qts = 0.368
No = 0.54%
SPLo = 89.34 dB

i am looking for sealed and ported box suggestions and port dia and length.

thank you for your time.

zuki · 4th March 2007, 11:41 PM

i am using a bash amplifier from parts express.

the room is 30' x 35' with 12 foot ceiling.

thank you.

PeteMcK · 5th March 2007, 12:13 AM

Unibox gives me 80L for a sealed box, ~6dB down at 30 Hz
200L for ported.... rather large, if you want to get it flat all the way down to 20Hz

How big are you prepared to go, and what are you trying to achieve with this driver?

zuki · 5th March 2007, 12:59 AM

what is the cubic foot conversion for those litre amounts.

and the port length and dia.

i would like the woofer to work well in a home theatre set up.

thank you.

DAMIC · 5th March 2007, 11:44 AM

One cubic foot equals 28,3 liter, so...

zuki · 5th March 2007, 01:14 PM

thank you.

here is the topic from another forum.

http://forum.elitecaraudio.com/showt...hreadid=140263

zuki · 5th March 2007, 03:14 PM

i forgot to mention, i bought a large amount of these woofers and 1 application is a pick up. and the other application is a large home theatre set up.

sorry

zuki · 5th March 2007, 10:40 PM

any other box suggestions ?

i will start this build as soon as i make up my mind on the cabinet size.

thank you.

zuki · 6th March 2007, 09:50 AM

if these were your woofers. which box would you build ?

make up my mind.

richie00boy · 6th March 2007, 10:00 AM

Why don't you answer Pete's question? Then you can work forwards from there.

4th March 2007, 08:47 PM	#1
zuki diyAudio Member Join Date: Feb 2004 Location: earth	what are some sealed and ported box sizes you can suggest for this speaker ? Here are the technical specs; Dual 4 Revc = 7.2 Ohm Fo = 20.5 Hz Sd = 840.0 cm^2 Vas = 260 Ltr Mms = 224 g BL = 22.31 T.M Qms = 2.76 Qes = 0.42 Qts = 0.368 No = 0.54% SPLo = 89.34 dB i am looking for sealed and ported box suggestions and port dia and length. thank you for your time.

6th March 2007, 10:00 AM	#10
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	Why don't you answer Pete's question? Then you can work forwards from there. __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

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4th March 2007, 11:41 PM	#2
zuki diyAudio Member Join Date: Feb 2004 Location: earth	i am using a bash amplifier from parts express. the room is 30' x 35' with 12 foot ceiling. thank you.

5th March 2007, 12:13 AM	#3
PeteMcK diyAudio Member Join Date: Feb 2002 Location: Sydney	Unibox gives me 80L for a sealed box, ~6dB down at 30 Hz 200L for ported.... rather large, if you want to get it flat all the way down to 20Hz How big are you prepared to go, and what are you trying to achieve with this driver?

5th March 2007, 12:59 AM	#4
zuki diyAudio Member Join Date: Feb 2004 Location: earth	what is the cubic foot conversion for those litre amounts. and the port length and dia. i would like the woofer to work well in a home theatre set up. thank you.

5th March 2007, 11:44 AM	#5
DAMIC diyAudio Member Join Date: Jan 2006 Location: Beograd	One cubic foot equals 28,3 liter, so...

5th March 2007, 01:14 PM	#6
zuki diyAudio Member Join Date: Feb 2004 Location: earth	thank you. here is the topic from another forum. http://forum.elitecaraudio.com/showt...hreadid=140263

5th March 2007, 03:14 PM	#7
zuki diyAudio Member Join Date: Feb 2004 Location: earth	i forgot to mention, i bought a large amount of these woofers and 1 application is a pick up. and the other application is a large home theatre set up. sorry

5th March 2007, 10:40 PM	#8
zuki diyAudio Member Join Date: Feb 2004 Location: earth	any other box suggestions ? i will start this build as soon as i make up my mind on the cabinet size. thank you.

6th March 2007, 09:50 AM	#9
zuki diyAudio Member Join Date: Feb 2004 Location: earth	if these were your woofers. which box would you build ? make up my mind.

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