I love urbanears! great headphones. Okay, so the static sound you might be hearing could be the wires not being protected from electrostatic, which is common with electric guitar pickups having a "buzzy" sound when played. I recommend wrapping the exposed wire with electrostatic shielding. Link:[http://| https://www.amazon.com/Copper-Tape-Shielding-Electric-Quadcopter/dp/B00K5RKD00] . That might do it.
-Toby