deeaa
August 22nd, 2009, 01:20 PM
I have a noise problem with my setup. I get this noise that is sort of intermittant, almost like from an external interference, but it's internal. It sort of sounds like a tube going bad, but it ain't that.
It sounds very much like...you know when you put on a dirty vinyl disk and at the start it has this rumble slash noise...or like you'd rub your thumb against the vinyl player needle...or like rub a microphone or even a speaker hard. You know; brumbblmbbrzzzhrhmb...kraah...hrrmbbb...braahh...b rrmmb...quite loud too. It seems to vanish when I play something, though; or isn't audible under it all.
If I plug in my guitar straight, no noise whatsoever. (EMG85 > Ceriatone ptp EL84 head).
If I plug in my guitar and put ANY of the following in between (and on), the rumble appears:
-Marshall Jackhammer (very low OD setting, no boost)
-Marshall ED-1 compressor (no boost)
-Tech-21 revboost (reverb, no boost)
If I leave the FX on and disconnect guitar, quiet as a mouse.
It doesn't matter if I have one or 3 pedals on, same rumble. Even if I use a volume pedal to drop the volume going to amp, rumble.
This is really driving me crazy...can't find any reason for the rumble. It's like there is this rumble hiding in my guitar and it is let loose if I turn on any pedal, which then somehow amplifies it greatly. Yet the pedals themselves don't make a sound.
I'd understand the compressor; it'd amplify a 'no signal' and turn up just noise when I'm not playing...but the OD and reverb does that too? The only difference between these and the rest of my pedals is that these have an AMPLIFIER circuit...even if set to no boost...could be the key?
All FX are powered by a 'one spot' 9v transformer BTW.
Any ideas welcome.
I suppose I have to just start eliminating things, use another guitar and stack up stuff till I find what gives.
Or just get a noise gate and put it right after the guitar? Or where...really strange.
It sounds very much like...you know when you put on a dirty vinyl disk and at the start it has this rumble slash noise...or like you'd rub your thumb against the vinyl player needle...or like rub a microphone or even a speaker hard. You know; brumbblmbbrzzzhrhmb...kraah...hrrmbbb...braahh...b rrmmb...quite loud too. It seems to vanish when I play something, though; or isn't audible under it all.
If I plug in my guitar straight, no noise whatsoever. (EMG85 > Ceriatone ptp EL84 head).
If I plug in my guitar and put ANY of the following in between (and on), the rumble appears:
-Marshall Jackhammer (very low OD setting, no boost)
-Marshall ED-1 compressor (no boost)
-Tech-21 revboost (reverb, no boost)
If I leave the FX on and disconnect guitar, quiet as a mouse.
It doesn't matter if I have one or 3 pedals on, same rumble. Even if I use a volume pedal to drop the volume going to amp, rumble.
This is really driving me crazy...can't find any reason for the rumble. It's like there is this rumble hiding in my guitar and it is let loose if I turn on any pedal, which then somehow amplifies it greatly. Yet the pedals themselves don't make a sound.
I'd understand the compressor; it'd amplify a 'no signal' and turn up just noise when I'm not playing...but the OD and reverb does that too? The only difference between these and the rest of my pedals is that these have an AMPLIFIER circuit...even if set to no boost...could be the key?
All FX are powered by a 'one spot' 9v transformer BTW.
Any ideas welcome.
I suppose I have to just start eliminating things, use another guitar and stack up stuff till I find what gives.
Or just get a noise gate and put it right after the guitar? Or where...really strange.