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Mesa M9 Carbine volume problem

Discussion in 'Amps and Cabs [BG]' started by Monotheist, Dec 20, 2012.

  1. Monotheist


    Nov 24, 2010
    Ottawa, Canada
    Hey guys, again I come to you for help.

    Last night at band practice I had issues with the volume on my M9.

    I was turning it up and nothing was changing. Just a SLIGHT increase in volume but barely noticeable.

    This is the second time this has happened. I noticed at the end of a jam last month but the following day it was fine. It's been good up until last night.

    Last night I bypassed the preamp by running my Sansamp in the return. Didn't change anything.

    Any idea what it could be?
  2. Randyt


    Jul 21, 2010
    Barrie, Canada
    My M6 did something very similar...ended up being my preamp tube..12ax7....but hey ..just my experience.
  3. Monotheist


    Nov 24, 2010
    Ottawa, Canada
    Cool thanks. I'll take a look at that. I have an extra I can swap.
  4. RickenBoogie


    Jul 22, 2007
    Dallas, TX
    What speaker cab are we talking about?
  5. Sponsored by:

  6. Monotheist


    Nov 24, 2010
    Ottawa, Canada
    last night was a crappy beringher cab. the previous time it was a mesa ph412
  7. When the problem comes and goes the first thing to check is the tube(s). at least in my experience.
  8. Monotheist


    Nov 24, 2010
    Ottawa, Canada
    i'll swap it and see what happens. thanks man

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