#1
when i have my guitar jacked in
my microcube makes a staticy noise or feedback when im not playing

whatsup with it?
#2
It happens to me as well, but when the amp is near a laptop, monitor, etc.
Besides being a guitar player, I'm a big fan of the guitar. I love that damn instrument. Steve Vai

Gear:
Kramer Striker FR422SM
Roland Microcube
Digitech Bad Monkey
Dunlop Tortex 1.14mm picks


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#3
bad connections maybe? poor cables, too much power taken from the outlet it is plugged into or maybe your pickups are making the noise. i experience zero noise even at full volume but i use an EQ pedal with mine so i get some noise and it isnt drastic either. i still use a noise gate but it isnt as bad as your saying. ive never gotten feedback (i wish -_-).
Schecter C-1 classic
Takamine GS330S
Roland microcube FTW!