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SpeakerTalk This forum has been set up to facilitate discussion of 1970s KEF speakers and drive units. The owner of the Forum has no connection with KEF Audio.
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vagpurple Introductory Contributor
Joined: 19 Aug 2014 Posts: 1
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Posted: Thu Oct 01, 2015 8:26 am Post subject: Tangent TM1 revival |
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Hello everyone!
Financial crisis in Greece leaves no option to a poor music lover than DIY.So I
have two spare KEF B200's SP 1014 and T27's and I intend to give life to a Tangent TM 1 clone.If anyone can contribute with any information regarding these speakers would be most welcome.(cabinet internal and external dimensions,bracing,type of wood,battens,deadening resonances,stuffing,crossovers,suitable type of inductors,etc)
I decided to build these speakers after visiting http://www.thunders.ca/tangent/tm1.php
and reading a review on the french HI FI STEREO July 1979 magazine at
http://cabasse.vraiforum.com/t3534-TANGENT-Enceinte-TM1.htm
Thank you,
Vaggelis |
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bellwoods Introductory Contributor
Joined: 23 May 2017 Posts: 4
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Posted: Thu May 25, 2017 12:09 am Post subject: Tangent info |
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I have rebuilt a pair of these and have some sketches and info you might find useful. Do you still need them and if so how do I get them to you in PDF form? |
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audiolabtower VIP Contributor 500+
Joined: 06 Jan 2009 Posts: 686
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Posted: Thu May 25, 2017 5:21 pm Post subject: |
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Personally I think that square reflex tube was purely a gimmick. It must lead to "chuffing" and non linear behaviour under high output - just read the research done recently on port design eg on the Kef LS50. I would calculate the internal volume and replace with a tube of the same volume. Maybe try a soft foam internal lining to the tube as Spendor used? This reduced distortion and turbulence at the port edges. |
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