The Dynaco Tube Audio Forum

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


    NFB Connection Point

    Share

    mazeeff

    Posts : 116
    Join date : 2014-01-06
    Age : 61
    Location : Grand Rapids, Michigan, USA

    NFB Connection Point

    Post by mazeeff on Tue Oct 07, 2014 5:45 am

    I was looking at a ST-70 for sale, and noticed that the NFB was connected to the 8 ohm winding, instead of the 16 ohm tap. Is there any downside to running a amp in this configuration?

    Mike

    MontanaWay

    Posts : 767
    Join date : 2014-02-06
    Age : 58
    Location : Cameron, Montana

    Re: NFB Connection Point

    Post by MontanaWay on Tue Oct 07, 2014 10:33 am

    mazeeff wrote:I was looking at a ST-70 for sale, and noticed that the NFB was connected to the 8 ohm winding, instead of the 16 ohm tap. Is there any downside to running a amp in this configuration?

    Mike

    It should not matter, as NFB, for one of the better words, is used to reduce distortion, so as long as the NFB signal is present, that should suffice in this instance.

    zx

    Posts : 194
    Join date : 2011-08-05

    Re: NFB Connection Point

    Post by zx on Tue Oct 07, 2014 10:57 am

    To day most like the Sound of the speakers being used in the NFB loop...so we split the diff an use the 8 ohm tap....but if your using the 4 ohm tap...you can use the 4ohm tap for the NFB...
    I never use the 4 ohm tap even with 4 ohm speakers...as it about 2-3db less output an sounds a littel dark  in my setups
    less your runing 16 ohm speakers....most to day 4-5-8ohm speaker ....
    but it well work fine on any tap................



    Thanks for the site Bob...........

    Sponsored content

    Re: NFB Connection Point

    Post by Sponsored content Today at 7:50 am


      Current date/time is Thu Sep 29, 2016 7:50 am