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Thread: A large two way speaker system paiyng homage to the KEF BBC LS5/1AE

  1. #11
    Join Date: May 2008

    Location: A Strangely Isolated Place in Suffolk with Far Away Trains Passing By...

    Posts: 14,535
    I'm David.

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    I can only talk after reading other people's research, but paper for speaker cones was discarded in the late 60's by BBC designs because then it seems, it was too variable from batch to batch for their purpose. Today, nothing like the same issue as other fibres can be added to the gloop
    Tear down these walls; Cut the ties that held me
    Crying out at the top of my voice; Tell me now if you can hear me

  2. #12
    Join Date: Dec 2013

    Location: Suffolk

    Posts: 128
    I'm Simon.

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    That was a very big issue for the LS5/1 speakers variability between bass drivers lead to the LS5/5 design then the LS5/8

  3. #13
    Join Date: Nov 2015

    Location: Anlaby, Yorkshire, UK

    Posts: 44
    I'm Scott.

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    Aye, consistency tended to be the issue with pulp based cones in the '60s & '70s. At least in terms of the base material[s].

  4. #14
    Join Date: Jan 2011

    Location: Kent

    Posts: 1,357
    I'm Clark.

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    The JBL D130 or one of it's later brethren (E130, E140 or E150) might be an interesting proposition

    While not common, they can be found in the UK.

    http://www.lansingheritage.org/html/...omp/d130-2.htm

  5. #15
    Join Date: Dec 2013

    Location: Suffolk

    Posts: 128
    I'm Simon.

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    Quote Originally Posted by BTH K10A View Post
    The JBL D130 or one of it's later brethren (E130, E140 or E150) might be an interesting proposition

    While not common, they can be found in the UK.

    http://www.lansingheritage.org/html/...omp/d130-2.htm
    Thank you for the info will check out one of the E series

    Simon

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