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The Dynaco Tube Audio Forum

Dedicated to the restoration and preservation of all original Dynaco tube audio equipment - Customer support for Tubes4hifi VTA tube amp and preamp kits and all Dynakitparts.com products


3 posters

    KEF LS50 speaker

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    Finjima


    Posts : 2
    Join date : 2016-03-23

    KEF LS50 speaker Empty KEF LS50 speaker

    Post by Finjima Sun Mar 05, 2017 4:33 pm

    I have the mind to build the VTA 120 one of these days. I also have my eye on a pair of KEF LS 50's that are suppose to sound great, I was wondering if anyone here has had a go with those KEF's here and how they work with these amps
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    Dogstar


    Posts : 361
    Join date : 2014-06-23

    KEF LS50 speaker Empty Re: KEF LS50 speaker

    Post by Dogstar Sun Mar 05, 2017 5:30 pm

    That speaker has a sensitivity of only 85dB. It will probably sound ok but not get very loud. If the room you're going to build this for is small then this may be ok.
    Bob Latino
    Bob Latino
    Admin


    Posts : 3260
    Join date : 2008-11-26
    Location : Massachusetts

    KEF LS50 speaker Empty Re: KEF LS50 speaker

    Post by Bob Latino Sun Mar 05, 2017 7:22 pm

    Finjima wrote:I have the mind to build the VTA 120 one of these days. I also have my eye on a pair of KEF LS 50's that are suppose to sound great, I was wondering if anyone here has had a go with those KEF's here and how they work with these amps

    I actually have a pair of KEF C30's here. They are not exactly the KEF LS50 but my VTA ST-120 drives them fine. The LS50's are only 85 dB efficient but I do have customers using speakers in that efficiency range that use a VTA ST-120's to drive them. I had at one time here a pair of 86 dB Magnepan 1.6's. The VTA ST-120 drove them to pretty loud levels in my 12 X 20 downstairs music room.

    Bob
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    Dogstar


    Posts : 361
    Join date : 2014-06-23

    KEF LS50 speaker Empty Re: KEF LS50 speaker

    Post by Dogstar Mon Mar 06, 2017 10:06 am

    The C30's have a sensitivity of 90dB while the LS50's are at 85dB. Seems to me the C30's would be a better choice. However, auditioning the speakers before purchasing is probably the best way to move forward.

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    KEF LS50 speaker Empty Re: KEF LS50 speaker

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