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Post subject: Fender Superchamp 2 Volume is jumping up and down
Posted: Tue Feb 14, 2017 8:00 am
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Hobbyist
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Joined: Tue Feb 14, 2017 7:53 am
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Hi, my superchamp 2 started having this issue a few days ago:
Volume output seems to increase or decrease erratically while playing, no matter if I use the valve channel or the digital one. Turned off all effects, tried different voices, etc..problem persists.
Checked all connections, the valves, played through different guitars, and same issue persists.

Any ideas?

Thanks,


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Post subject: Re: Fender Superchamp 2 Volume is jumping up and down
Posted: Thu Feb 16, 2017 11:13 am
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Roadie
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Joined: Thu Jun 19, 2014 6:22 am
Posts: 220
Is it still under warranty? These amps come with a 5 year warranty. If so, take it to a Fender repair center. You say you changed the valves (tubes) and the problem still occurs? There is no "valve channel" on the SCX2. Both channels go through the digital sound processor to the tube output stage. The volume is controlled in the digital section of the amp.


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Post subject: Re: Fender Superchamp 2 Volume is jumping up and down
Posted: Tue Mar 21, 2017 7:43 pm
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Joined: Fri Jan 02, 2009 7:36 am
Posts: 93
Location: Dallas, TX
pdawg wrote:
Is it still under warranty? These amps come with a 5 year warranty. If so, take it to a Fender repair center. You say you changed the valves (tubes) and the problem still occurs? There is no "valve channel" on the SCX2. Both channels go through the digital sound processor to the tube output stage. The volume is controlled in the digital section of/ the amp.

No, he said he checked the valves, not replaced them.

That's what I'd suspect first, too, a failing or faulty 6V6 power tube or the dual purpose 12AX7 preamp/phase inverter tube.


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