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Preamp tubes - 12ax7/12au7/12at7 VS

Discussion in 'Preamps & Processing' started by snooch, Aug 22, 2006.

  1. snooch

    snooch Guest

    6SN7 & 12SN7. any of you guys who build or tinker have any opinions?

    I know the au,at & 6sn7 are lower gain than their counterparts.

    Any thoughts on the way they sound?

  2. pr0gr4m

    pr0gr4m Distinguished Member

    Feb 9, 2005
    South Florida
    Home Page:
    I don't know about those specific models but I know that a tube isn't any good without a fee waybill.
  3. TVPostSound

    TVPostSound Guest

    And a baby's arm holding an apple!!!
  4. snooch

    snooch Guest

    thanks for your input.
  5. jonyoung

    jonyoung Well-Known Member

    Dec 31, 2003
    I haven't messed with the SN7 series, I do run a few pres (identical models) with 12DF7's, 12AT7's and 12AX7's. The DF's and AT's are lower gain, lower noise, almost impossible to clip on vocals and acoustic tracks. When I first loaded them, I did an A/B/C between all 3 with a Guild D25M acoustic. The AX's were bright and sparkly, lots of air. The AT's were very midrangey, in yer face up close sound (almost like heavy compression). The DF's are dark and smooth, and I think I got the last pair on earth 8)
  6. snooch

    snooch Guest

    Ok, thanks jony. I was hearing about about the 12**7's sometimes sounding "pinched" in preamps, but hell if I really know what that means.

    And the SN7 being more musical sounding?

  7. jonyoung

    jonyoung Well-Known Member

    Dec 31, 2003
    Pinched? Not in my world :D

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