Genz Benz Shuttle 6.0 mute issue

Discussion in 'Amps and Cabs [BG]' started by SkyShepherd, Sep 14, 2019.

  1. SkyShepherd


    Sep 8, 2019
    Hey folks,

    My first thread after intro, woohoo!

    I have run into a problem with my GB Shuttle 6.0 where I push the mute button on the amp face, the red light illuminates, and it has no effect on the amp output. It sounds like a relay trips in the amp (so not just the mechanical action of the push button), but the audio is not affected at all.

    Can anyone give me insight into what could be going on? As an aside, the tube hasn’t been changed in about 4 years. Probably not related, just for background.

    Thanks folks, and I have been really leaning on experience in all the threads as I am working back into playing after a long hiatus.

    wave rider likes this.
  2. jnewmark

    jnewmark Just wanna play the groove. Supporting Member

    Aug 31, 2006
    Stax 1966
    Third St. Cigar Records staff musician.
    You might want to PM member Agedhorse; he designed the amp, and does tech work on them to this day, even though Genz Benz is no more. He will fix you up in no time !
    wave rider likes this.
  3. agedhorse

    agedhorse Supporting Member Commercial User

    Feb 12, 2006
    Davis, CA (USA)
    Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
    Not a tube problem.

    Could be a defective relay or something within the relay driver.

    Your amp's covered under a factory flat rate service program provided nobody attempt to repair it because that causes much more work and time spent on additional work checking for damage caused. Generally, this costs $85 including parts and labor. The entire amp it brought back to original factory spec too.

    PM me if interested.
    alfnz, mdalamond and wave rider like this.