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Peavey TB Raxx preamp

Discussion in 'Amps [BG]' started by Justice, Apr 3, 2014.


  1. Justice

    Justice

    May 24, 2002
    Houston TX.
    I have a Peavey TB Raxx bass preamp. I am the original owner.

    It seems to be working fine, it does not give me any problems and I have it paired up with a Crown XLS 1000 Drivecore amp.

    It has the original tubes. And like I said, it seems to be working fine.

    It uses 2 12ax7 preamp tubes. Would I notice any difference if I were to install new tubes? What would someone suggest?

    Groove Tubes, EHX, Mullard, Tung Sol, JJ, Ruby?
     
  2. Justice

    Justice

    May 24, 2002
    Houston TX.
    anyone? Bueller?
     
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  4. dune2k

    dune2k

    Sep 26, 2009
    Germany
    You'll probably notice some difference, but it doesn't have to be much.
    Since 12AX7s aren't that expensive and also don't go bad over time - well, maybe in 50 years...but that'd be enough time to get another amp :bag: - there's not much to loose.

    Regarding which tubes to try: Try googling for tests, as said they all have slightly different characteristics. JJ tubes are a good place to start. They are cheap, sound nice & are easy to get by.
     
  5. VanillaThundah

    VanillaThundah Gentleman Primate Supporting Member

    Jul 30, 2010
    Houston, TX
    JJ's, Tung Sols, and EHX are all good bets. I got a Penta 12ax7 that I'm very happy with. No affiliation, but I'd check out Doug's Tubes if you want to have your tubes tailored to your specs (hi-gain or other characteristics). Really helpful and easy to navigate the site.
     



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