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


    Sovtek KT88 with kit

    Share

    vegaseddoc

    Posts : 15
    Join date : 2009-11-21

    Sovtek KT88 with kit

    Post by vegaseddoc on Tue Aug 10, 2010 12:16 am

    I really like the Sovtek KT88's that came with the ST120 kit. I wanted to see is if I could "upgrade" the sound so I was recommended a set of Shuguang KT88-98's. I found them to be harsh and bright even after a long break-in period. So I went back to the Sovtek's and the liguid smooth natural sound returned. I know Bob loves the Gold Lion KT88 but is there that much of an improvement over the Sovtek's? I tend to like smooth natural sounding tubes (for example I use Mullard 12at7's in my ST120).

    Bob Latino
    Admin

    Posts : 2411
    Join date : 2008-11-26
    Location : Massachusetts

    Re: Sovtek KT88 with kit

    Post by Bob Latino on Tue Aug 10, 2010 6:15 am

    Hi,

    The Sovtek KT88 tubes are not only excellent tubes for the money, they are also pretty durable tubes and should last 2000 - 3000 hours in your ST-120.

    The Genalex Gold Lion KT88's are about $200 a quad, about double the price of the Sovtek KT88's. They offer a subtle increase in sound quality over the Sovtek's. To get the nth degree of sound realism from your ST-120 you need a tube like the Gold Lion KT88's. The Sovtek's are situated right at the bend of the price/performance curve. To get noticeabley better sound you have to spend a lot more money.

    Interestingly, in the VTA ST-70 and the ST-120, changes in the CENTER 12AT7 have possibly even more influence on the amp's sound quality than changes in the output tubes. My favorite 12AT7 in that center spot (until I hear something better) is the Mullard CV4024 which is a 12AT7 equivalent tube.

    Bob

    vegaseddoc

    Posts : 15
    Join date : 2009-11-21

    Re: Sovtek KT88 with kit

    Post by vegaseddoc on Tue Aug 10, 2010 1:12 pm

    Thanks for the info. I've tried Telefunken, Seimens, Sylvania gold 6201's, and Mullards at the center position and I always come back to the Mullards (CV4024 being the best bang for the buck). I'll order a quad of Gold Lion KT-88's.

    Jason

    Sponsored content

    Re: Sovtek KT88 with kit

    Post by Sponsored content Today at 12:18 pm


      Current date/time is Wed Dec 07, 2016 12:18 pm