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Lee in Montreal
Senior Contributor 200+
Joined: 22 Aug 2009
Posts: 231
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 Posted: Sun Oct 18, 2009 11:25 pm Post subject: Cambridge Audio R50 Transmission line speakers + DIY |
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Cambridge Audio R50 was a transmission line speaker from the 1970's using B139, B110 and T27.
More details here
http://baobab-audio.com/index_files/Page321.htm
How to replicate one. Better have a friend who’s quite handy. My own design was very, very similar (17 years ago) and I really sweated. This version uses only 3 drivers, but it is more than enough. Who needs ultrasonic drivers at our age?
Here are some pretty clear blueprints
http://homepage.mac.com/planet10/TLS/downloads/Pro9TL-1.pdf
And for a bit more, with different drivers and some design changes.
http://homepage.mac.com/planet10/TLS/downloads/Pro9TL-Mk2.pdf
Lee
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Current line up
2 sets basic Kef 104/2
2 sets bi-wire Kef 104/2
Plenty of KEF components for a few fun builds |
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ColinR
Über Contributor 1000+
Joined: 31 Jul 2004
Posts: 1175
Location: Staffordshire
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| Posted: Mon Oct 19, 2009 10:33 am Post subject: |
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The above post is worthy of Winkepedia.
B. J. Webb a retired schoolteacher (and perfect gentleman) designed the R50, which was bought a a complete design according to Stan Curtis, a former director of Cambridge Audio.
Burt's DIY version may be found in The Audio Amateur issue 1/75.
Chris Rogers version is a “copyright avoidance” design not a “proper job”!
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This post or any other information supplied to this website or any other by myself is not available for any form of commercial purpose i.e. to hi-fi magazines or as sales and marketing material for sleezeBay or Audiodogging pimps and the like. |
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TL 200
Senior Contributor 100+
Joined: 27 Jul 2009
Posts: 141
Location: Emmer-Compascuum The Netherlands
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| Posted: Tue Oct 20, 2009 11:32 am Post subject: |
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| ColinR wrote: | The above post is worthy of Winkepedia.
B. J. Webb a retired schoolteacher (and perfect gentleman) designed the R50, which was bought a a complete design according to Stan Curtis, a former director of Cambridge Audio.
Burt's DIY version may be found in The Audio Amateur issue 1/75.
Chris Rogers version is a “copyright avoidance” design not a “proper job”! |
Naughty Rogers. But he's not the only one who copies a design, seen lots of different versions of Baileys design too. |
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ColinR
Über Contributor 1000+
Joined: 31 Jul 2004
Posts: 1175
Location: Staffordshire
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| Posted: Tue Oct 20, 2009 11:50 am Post subject: |
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Don't forget Martin Colloms' Monitor Audio MA4 has the same box size, driver complement and crossover as the Stag Statesman  .
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This post or any other information supplied to this website or any other by myself is not available for any form of commercial purpose i.e. to hi-fi magazines or as sales and marketing material for sleezeBay or Audiodogging pimps and the like. |
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