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Tangent TM1 revival

 
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vagpurple
Introductory Contributor


Joined: 19 Aug 2014
Posts: 1

PostPosted: Thu Oct 01, 2015 8:26 am    Post subject: Tangent TM1 revival Reply with quote

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

PostPosted: Thu May 25, 2017 12:09 am    Post subject: Tangent info Reply with quote

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: 544

PostPosted: Thu May 25, 2017 5:21 pm    Post subject: Reply with quote

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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