Scanspeak 25W/7564?

Elbert · 17th January 2009, 04:09 PM

Hi!

I have a pair of Scanspeak 25/W7564 woofers, but the specifications are long lost!

Does anybody have the specs on these or any good idea where to find them?

Been trying to browse around on the web, but no luck so far.

These are special subwoofer units with an extra spider in place of a dust cap, think they only went up to 500 Hz or so..

Any help is most welcome!

Elbert · 18th January 2009, 03:29 PM

By chance, I stumbled across some data :

ScanSpeak 25W7564 driver parameters
Fs: 27 Hz
Qe: 0.32
Qm: 3.78
Qt; 0.29
Sensitivity: about 89,5 dB
Re: 6.8 ohms
Vas: 97.3 l
Sd: 298 sq. cm

Apparently, these drivers were from a batch of surplus custom OEM drivers, hence the difficulty in finding the data!

Anyway, I found (most)of what I was after, just thought I'd post it here to conclude the thread and in case someone else need the data some day.

17th January 2009, 04:09 PM	#1
Elbert diyAudio Member Join Date: Mar 2008	Scanspeak 25W/7564? Hi! I have a pair of Scanspeak 25/W7564 woofers, but the specifications are long lost! Does anybody have the specs on these or any good idea where to find them? Been trying to browse around on the web, but no luck so far. These are special subwoofer units with an extra spider in place of a dust cap, think they only went up to 500 Hz or so.. Any help is most welcome!

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18th January 2009, 03:29 PM	#2
Elbert diyAudio Member Join Date: Mar 2008	By chance, I stumbled across some data : ScanSpeak 25W7564 driver parameters Fs: 27 Hz Qe: 0.32 Qm: 3.78 Qt; 0.29 Sensitivity: about 89,5 dB Re: 6.8 ohms Vas: 97.3 l Sd: 298 sq. cm Apparently, these drivers were from a batch of surplus custom OEM drivers, hence the difficulty in finding the data! Anyway, I found (most)of what I was after, just thought I'd post it here to conclude the thread and in case someone else need the data some day.

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