Plugging the output of the Aeros into the input of the BeatBuddy is where the problem happens.
I forgot to mention that this pedal board is powered by a Voodoo pedal power plus 3. Could that be the problem? I tried several other power supplies with the same result. I purchased this new model because Voodoo Lab makes some high claims about the isolation of this device and also says that this is the quietest power supply you can buy.
Yes that could be it!!! Please try a different power supply, I use the CS12 one Spot pro and it’s silent, one of the best purchases I’ve made!
There are many topics on this on the forum if you search you may find several other suggestions.
Let us know!