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PostPosted: Sun Oct 15, 2017 5:39 am 
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Joined: Thu Jun 30, 2005 12:18 pm
Posts: 406
Location: Wooler, ON, CA
Hi has anyone ever owed or seen a pair of these, not sure if they are ribbons or electrostatic? Look like klh 9s from front but each panel angles or folds on hinges. Weird octal plug. Not sure if they are missing power supply etc? Appear to be early 60s but are stamped made in Canada by Sigma Technical Assoc. Ltd .I could not find one piece of info on the web. Any info would be much appreciated, these units are very thin not much more the an inch. Thanks in advance for your help.


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PostPosted: Mon Oct 16, 2017 7:38 am 
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Joined: Thu Jun 30, 2005 12:18 pm
Posts: 406
Location: Wooler, ON, CA
Really absolutely nothing wow! It was surprising to me when I was stumped, nothing on net but zero from Canuck community? Now that's amazing I though somebody out there might know something!


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PostPosted: Fri Oct 20, 2017 8:01 am 
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Joined: Wed Jun 24, 2015 4:17 am
Posts: 858
Location: Fergus, ON, CA
interesting...I am also waiting for some insight on these.

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PostPosted: Fri Oct 20, 2017 8:44 am 
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Joined: Wed Jul 09, 2014 2:06 am
Posts: 273
Location: toronto, ON, CA
Sometimes prototypes show up that were never available for sale.
Cool speakers


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PostPosted: Fri Oct 20, 2017 8:54 am 
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Joined: Mon Sep 16, 2013 12:20 pm
Posts: 299
Location: Delta, BC, CA
Good God.... they look like a pair a buddy have back in 76, I will call him up and see what he remembers!!!


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PostPosted: Fri Oct 20, 2017 10:17 am 
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Joined: Thu Jun 30, 2005 12:18 pm
Posts: 406
Location: Wooler, ON, CA
Well they have a very professional looking metal plate on bottom with make model etc, where it also says made in Canada so it's like they made it past the prototype stage??? Big puzzle, I am wondering though if they used parts available in the market rather then manufacture their own which would have been serious money for panels etc. Of course any search is complicated by the name Sigma which was used by everybody in speaker business for model names. Lol


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