Let s define the terms.
Daisy chain pedals noise.
Take note of what kind of undesirable noise you are experiencing from your rig.
Each plug in the chain is connected internally to all the others going from one plug to the next so current and ground are shared between each plug.
Powering with a daisy chain or multi output power supply that shares its current across the outputs will result in a high pitched noise at the output like you describe.
You must always use an isolated power supply or multi output supply with isolated outputs like our zuma or ojai power supplies to avoid any additional noise in your audio.
A daisy chain is a supply with one main power module and a string of plugs.
Whether any one user hears noise with any pedal chain depends mainly on whether a ground loop has leaked noise into the audio path.
Using a daisy chain psu doesn t mean there will be noise but it opens up more avenues for noise issues to occur.
Multiple pedals are hard enough to manage from both a cabling and settings perspective the last thing you want is the power supply affecting your sound signal as well.
The problem with a daisy chained power supply is that all of the connections share a common ground which can introduce unwanted noise or hiss into your signal.
Creating a daisy chain for your guitar pedals is easy but there are a few things you need to get right or you risk burning out your power supply and adding noise to the signal.
Is it a hum when all your pedals are plugged in to your power supply or daisy chain.
In our case an effects pedal daisy chain is a wiring scheme where multiple pedals are wired together in sequence from a single source of power.
Part 2 of our discussion of power supplies pedal board power and in this episode some talk about eliminating noise and problems with your pedals and pedalb.