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Pre Amp Tubes for Sunn 1200s/Fender Pro 1200

Discussion in 'Amps and Cabs [BG]' started by toddtodd, Jun 22, 2005.

  1. i rescently bought a Sunn1200s.
    i am wondering what tubes you all have in your Sunn/Fender.
    what tubes are better for overdrive?
    what preamps tubes would i get for max. clean headroom?
    anything else?


  2. bump
  3. Plain Old Me

    Plain Old Me

    Dec 14, 2004
    JJs usually have a lot of clean hadroom...
  4. godraphonic


    Jun 6, 2005
    better for overdrive and more clean head room are mutualy exclusive, can't have both.

    You don't want to over drive the power tubes with a bass, you'll blow speakers and loose definition and tightness of the bottom.

    12ax7 are the highest gain, something like a 12au7 (?) has less gain and gives more headroom, and a lot of it depends on the bass, active vs. passive pups, or the relative hotness of the pups in general.

    Just experiment with different brands, or even just different tubes of the same brand till you find one you like.

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