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my amp sounds is making a distorted phasey sound

Discussion in 'Amps and Cabs [BG]' started by treymonfauntre, May 11, 2006.

  1. treymonfauntre


    May 11, 2006
    heres the gear i'm currently hooking up:

    OLP musicman 4 string
    gallien krueger backline 600
    fender bassman 1x15

    the head has 2 channels, one has gain and the other is clean. theres a 10db pad, which i usually use because i play very hard and sometimes the bass will clip the input. however, when i'm playing live (usually i add a 2x10 to the combination, which brings it down to 4ohms which the amp is rated at) i need the extra volume so i don't use it. the clipping isn't a problem because i usually crank the boost and midrange so it is a real dirty overdrive sound.
    but the other night at a show i couldn't use it at all, no matter what i did to the EQ the output from the amp was just 100% bass and no treble. i worried about blowing out my speakers since it was SO bass heavy, so i borrowed a friends 4x10 combo and played the rest of our set with that. **** was embarassing.
    anyway, i took it home to listen, and without the pad on the clean channel is distorting heavily and theres a bit of a phasey/comb filter style effect you can hear. what would cause this? the amp is only from december.
  2. treymonfauntre


    May 11, 2006
  3. treymonfauntre


    May 11, 2006
    more info:
    i didn't even think about it at the time, but i was using this head to power an 8ohm 15" cab and a 4ohm 4x10. the head is only rated to 4ohms. could that have screwed something up?
  4. treymonfauntre


    May 11, 2006
    i just realized i totally massacred the title of this thread
    my amp HEAD is making a distorted phasey sound...
  5. Eric Cioe

    Eric Cioe

    Jun 4, 2001
    Missoula, MT
    Yes. Take it to a tech. Not a whole lot a guy can do in a GK amp unless you know what's what.
  6. treymonfauntre


    May 11, 2006
    well actually i didn't touch it since i made this post and i powered it up a few minutes ago and its working perfectly fine. very strange stuff.

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