2. speakers
  3. 192058-167033

Identify, repair or replace mid range speaker in B139 based setup

I got my hands on (could not resist bringing home the famous oval driver) these speakers. Doesn't look like DIY but might be a kit.

a) If someone can identify what those, let me know. 

b) The midrange driver is all chewed up (foam gone, still runs, but broke voice coil wire when trying to remove from enclosure). Can somenoe ID the driver? Anyone out there that can refoam (and put longer voice coil wires back on)? 

c) If I cannot repair the existing midrange drivers, I need to find replacements that fit into the bracket (preferrably with their own sealed enclosure like the originals). Or else (but then would stack vertically with tweeter. 

 

https://drive.google.com/file/d/1_gIE6jrGBdwHaIU4hppW5rc9xBzIcy2P/view?usp=sharing

https://drive.google.com/file/d/1qN4pm70N9CeZBz6cDMcM-E3bAOUbnXda/view?usp=sharing

Midrange driver photos:

https://drive.google.com/drive/folders/1Kha0AvJc9w9khmVUJLmnYO4fS7-JPwB4?usp=sharing

 

 

kraftwerkturbo
yogiboy's avatar
yogiboy
5,702 posts
 

Here ya go!

https://www.falconacoustics.co.uk/drive-units-1/falcon-b110-t27-b139-drive-unit/falcon-b139-8-ohm-kef-b139-sp1044-replacement-woofer.html

kraftwerkturbo OP
329 posts
 

yogiboy, I need to replace the busted (foam, and broke voice coil leads) midrange Peerless KO40-MRF 8 Ohm. Not the Kef woofer (seems to work fine). 

mofimadness's avatar
mofimadness
4,992 posts
 

I would contact Bill LeGall from Miller Sound to see if he can fix it. He’s a genius and probably the best speaker repair person in the US, (maybe the world). Just google him.

He has done several repairs for me after being told from others that the drivers weren’t repairable.

Super highly recommended!

http://www.millersound.net/

https://forum.audiogon.com/discussions/bill-legall-millersound-speaker-driver-repair

crustycoot
644 posts
 

If repair is not possible, check with Madisound for near equivalent replacement. You may need to re-create the closed back chamber somewhow. 

petaluman
156 posts
 

from Wikipedia: "A stadium is a two-dimensional geometric shape constructed of a rectangle with semicircles at a pair of opposite sides. The same shape is known also as a pill shape, discorectangle, obround, or sausage body".

Dare we call a KEF B139 discorectangle-shaped?

More to discover