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RogerAF · 06-23-2008, 01:20 PM

Has anyone encountered this? My 50W head has been working fine, so I thought. I run all tones and presence at 10. Someone came to look at it and played with the tone controls. Bass and Mid seem to do nothing--no change in tone. When he tried turning down the treble the volume went away. We didn't really hear any change in tone, it acted like the volume pots. I don't know when this may have started. The amp has a real nice dirty sound, but the tone controls used to work.
Help Please!

06-23-2008, 01:20 PM	#1 (permalink)
RogerAF Junior Member Join Date: Jun 2008 Posts: 7	1975 JMP Mk2 Treble acts like volume Has anyone encountered this? My 50W head has been working fine, so I thought. I run all tones and presence at 10. Someone came to look at it and played with the tone controls. Bass and Mid seem to do nothing--no change in tone. When he tried turning down the treble the volume went away. We didn't really hear any change in tone, it acted like the volume pots. I don't know when this may have started. The amp has a real nice dirty sound, but the tone controls used to work. Help Please!