most of the hum comes from the power supply actually(thats just what from my experience)
The morley DC brick is not an isolated power supply, therefore you will still get a lot of noise/”hum”
when i was using my DC brick(2 of them actually) there was a serious amount of noise. I bought a Humdebugger and returned the next day for a MXR smart gate.
Now i run two of those in my amps effects loop and in front of the amp.
The Humdebugger honestly isnt for noisy pedals, more for noisy guitars. you should look into buying a noise gate.
