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3rd Times a Charm wrote:Pardon me for jumping in on this but make sure to check your power supply arrangement. Ground loops caused by not using isolated supplies are the most common cause of noise when assembling pedal boards. I've encountered this myself because I use supplies like the Godlyk or One-Spot with a daisy chain harness to power most of my pedals. The down side is potential noise. Not all pedals play well together in that regard. Some need to be on their own dedicated supply if you're not using a power supply with isolated outs. Once you get everything hooked up power up your amp then go through the board pulling the power plug one at a time pedal by pedal until you find the culprit. Put that pedal on it's own wall wart and you will be good to go.
3rd Times a Charm wrote:The Voodoo unit has separate windings for each output so I guess it's not that. I would still go through the board pulling power plugs just to find out which pedal is making all the noise. As you do it keep checking to make sure the signal is still passing through to the amp. Some pedals stop passing a signal when they loose power. If it's a pedal that's not always on you could use a bypass loop box so you can take it out of the signal path when it's not in use. I've done that with certain noise producers and tone suckers before. They are easy to throw together and a simple inexpensive fix for certain situations. Here is a wiring diagram.
If that's not a good fit for your situation then a noise reduction unit is your last resort. I always try to avoid using them because I like to use my guitar's volume controls for edge of break up stuff and don't like the way they cut my signal off when the volume gets low and the lower I adjust the threshold the less effective they get. It depends on the problem and the type of unit you get to solve it. There are devices made for dealing with ground loop issues and other devices made for dealing with THE HISS. It all depends on the material you play and how you use your gear. In high gain, all controls on 10 situations noise reduction pedals can be a great solution.
What type of noise are you experiencing, hum that goes away when you touch the strings or a constant white noise hiss?
3rd Times a Charm wrote:Yeah, that's what I saw. It looked like you were doing that. It boils down to a cable thing then or two pedals that don't play nice together. The only way to find it is to disconnect a pedal at a time from the chain until you pull the one making the noise. Sucks but it usually comes down to trial and error with pedals. Does the noise stop when you pull your send and return lines from the amp? That will tell you which group the problem is in. You said it dissapears when you switch to the clean channel. Are all the same pedals connected then?
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