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    Low output mc phono preamp options

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    ramon68

    Posts : 83
    Join date : 2009-04-12
    Age : 75
    Location : naples fl

    Low output mc phono preamp options

    Post by ramon68 on Thu Jun 16, 2011 3:24 pm

    I've searched the forum and found no references to phono preamp options for low output moving coils. Do any of you folks have a killer phono setup for your Stereo70, 120 or Mk III?















    tubes4hifi
    Admin

    Posts : 1261
    Join date : 2008-11-30

    Re: Low output mc phono preamp options

    Post by tubes4hifi on Thu Jun 16, 2011 5:21 pm

    PH11 has 52 db gain, PH12 has up to 60db gain, so it's good for .03mv MC,
    but step-up coil would most likely be quieter on either one, ton's of gain doesn't make for a quiet phono output
    www.tubes4hifi.com/pre11.htm

    Tube Nube

    Posts : 603
    Join date : 2008-12-06
    Age : 53
    Location : Calgary, AB

    Re: Low output mc phono preamp options

    Post by Tube Nube on Thu Jun 16, 2011 6:01 pm

    I'm sympathetic that there doesn't seem to be a lot of info out there for us MC cartridge guys, but I get the impression that using a step up transformer (SUT) is pretty standard practice.

    I'm using a kit from K & K audio that was pretty highly recommended. Cost seemed reasonable, the kit was good fun to build. The only extra you'll have to buy are a couple resistors to dial it in for the right . . . ratio of . . . whatever it was. I forget.

    So I'd echo Roy's advice -- get a SUT and a nice tube phono pre, such as one of those VTA models. Personal preference, but I why wreck things by going the transistor route when it comes to the phono stage?!

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