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jgerads93

Problem with Spider III HD 150 head?

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I have a Line 6 Spider III HD 150 head and run it through the Line 6 4-12 cab it came paired with. I always have both left and right head outputs hooked up to the corresponding left/right inputs on the cab, I never run it mono because I heard it can blow the head. anyway, just lately something strange has started happening.

when I turn my amp on and start to play, it will play perfectly fine for the first 10 seconds. and then all of the sudden, it seems like the distortion/gain cuts in half. I have tried switching it to a different channel, and it will play fine for about 5 seconds after I switch the channel but then it will end up doing the same thing. I can especially hear it on palm muted notes, they sound like they are being played with very little gain/distortion at all. has anybody experienced something like this? any ideas what it could be and/or how to fix it? Thanks in advance, I appreciate your time!!!

 

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I suspect that there is ac ompoent or preamp board that needs replacing - assuming you have tried a factory reset and it had no effect.

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thanks for the input. I have tried the factory reset, tried disconnecting/reconnecting everything, played with all of the knobs, checked different outlets, tried different guitars, everything in the book etc. I think I am going to take it in to a shop and have them deal with it.

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I have a Spider III 30 Watt that's doing the same thing.  Tried the factory reset, different guitars, etc, and still the same issue, the distortion cuts back.  When playing on the clean channel tho it seems to turn on the distortion.  Basically, it's like it changes the settings to something in between clean and crunchy............this is my first line 6.........little disappointed so far. 

 

Is there anyone out there who can help?!?!?!?!?!

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Looks like you should have a L6 amp tech look at it. Not much can be done for the 3s and earlier as I don't think they can be reflashed.

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