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zuki 4th March 2007 08:47 PM

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.

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.

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.


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. :smash:

richie00boy 6th March 2007 10:00 AM

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

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