Mystery loudspeakers

delsix · 26th March 2009, 03:05 PM

Hi, Ive been given a pair of speakers and was wondering if anyone had any idea what they are.

The only info on them is a pair of serial numbers:- 1066 Left & 1067 right.

I've pulled a midrange out, it has the serial number 796607 or maybe 79g607. The surround has completely withered but if I push the centre it moves in and very smoothly. So I reckon it can be easily mended if it's worthwhile.

So anybody got a clue what they are?

delsix · 26th March 2009, 03:06 PM

another picture

delsix · 26th March 2009, 03:09 PM

another picture
Haven't yet got the speakers into my basement, so will maybe find more info when I open them up.

Badge · 26th March 2009, 04:01 PM

Well, you have a KEF B139 woofer, and the small cones look like Peerless. Is the enclosure on the smaller cone driver attached or a separate piece?

delsix · 26th March 2009, 04:36 PM

thanks for the reply.

It's attached, see picture.

Badge · 26th March 2009, 05:48 PM

Yes, Peerless. A number of speakers used that one. Dalquest DQ 10 is an example. Sequerra 1 is another.

delsix · 26th March 2009, 05:58 PM

wow, it looks they these drivers have graced some pretty impressive speakers over the years. I'm picking them up in a bit so I'll be able to investigate further.

Badge · 26th March 2009, 06:02 PM

The Sequerra packed the exterior of the plastic enclosure with calk or putty to dampen it. They also removed the dust cap and put a phase plug in it's place.

planet10 · 26th March 2009, 06:46 PM

Kef B139, still a usable bass driver.... often used in a TL.

http://t-linespeakers.org/drivers/b139.html

Scott & i revisted the B139 TL using modern modeling tools. (2 possible configs shown at the link, but it could be done other ways).

http://t-linespeakers.org/projects/vProjects.html

Modrange is the closed back Peerless K040, used in quite a few speakers including some of the less expensive IMFs and the 2nd iteration of the Rogers Pro9TL

The tweeter -- can you post a closeup of the front and the back?

The XO is classic British. Someone common must have been making XOs for a lot of manufacturers.

The B139 is worth reusing... the tweeters in some "i need a tweeter, ant tweeter" application, and the XO for parts (mostly the chokes -- modern caps are much better)

dave

delsix · 26th March 2009, 06:49 PM

will do when i pick them up later

26th March 2009, 04:01 PM	#4
Badge diyAudio Member Join Date: May 2004 Location: Oregon	Well, you have a KEF B139 woofer, and the small cones look like Peerless. Is the enclosure on the smaller cone driver attached or a separate piece? __________________ The freaks stick together, they are a tight old crew

26th March 2009, 05:48 PM	#6
Badge diyAudio Member Join Date: May 2004 Location: Oregon	Yes, Peerless. A number of speakers used that one. Dalquest DQ 10 is an example. Sequerra 1 is another. __________________ The freaks stick together, they are a tight old crew

26th March 2009, 06:02 PM	#8
Badge diyAudio Member Join Date: May 2004 Location: Oregon	The Sequerra packed the exterior of the plastic enclosure with calk or putty to dampen it. They also removed the dust cap and put a phase plug in it's place. __________________ The freaks stick together, they are a tight old crew

26th March 2009, 06:46 PM	#9
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	Kef B139, still a usable bass driver.... often used in a TL. http://t-linespeakers.org/drivers/b139.html Scott & i revisted the B139 TL using modern modeling tools. (2 possible configs shown at the link, but it could be done other ways). http://t-linespeakers.org/projects/vProjects.html Modrange is the closed back Peerless K040, used in quite a few speakers including some of the less expensive IMFs and the 2nd iteration of the Rogers Pro9TL The tweeter -- can you post a closeup of the front and the back? The XO is classic British. Someone common must have been making XOs for a lot of manufacturers. The B139 is worth reusing... the tweeters in some "i need a tweeter, ant tweeter" application, and the XO for parts (mostly the chokes -- modern caps are much better) dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

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26th March 2009, 05:58 PM	#7
delsix diyAudio Member Join Date: Sep 2006	wow, it looks they these drivers have graced some pretty impressive speakers over the years. I'm picking them up in a bit so I'll be able to investigate further.

26th March 2009, 06:49 PM	#10
delsix diyAudio Member Join Date: Sep 2006	will do when i pick them up later

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