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1 of 4 channels (crunch) out on my Tube amp (Engl Invader 2)

Discussion in 'All About Tech' started by Stonewall_Apone, Nov 8, 2016.

  1. Stonewall_Apone

    Stonewall_Apone New Metal Member

    Jan 22, 2016
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    Hoping someone has some suggestions on things to try regarding a problem with my ENGL Invader 2.

    About a week ago or so, my channel 2 (crunch) of the amp stopped functioning. It produces no sound, other than a VERY light hum, that is barley audible. I never heard a pop or hiss indication of normal tube issues, but I'm still hoping this is the problem and nothing worse. However, I bought the amp new in January, and it came with 2 spare preamp tubes. I have already tried swapping the 2 preamp tubes with the 2 spots that the operator manual indicates would effect channel 2, but no success. I have not messed with power tubes, as I don't have any spares currently. However, keeping in mind all 3 other channels are absolutely perfect still, nothing at all out of the ordinary, or indication of potential malfunctions.

    Finally, I have checked cables, inputs, guitars, pickups and all of the easy variables. Any other thoughts would be greatly appreciated.

    Thanks for your time!

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