Thomann Breathing Bag 5 Liter Set
€ 3.12
€ 15.60
When rack mounting, additional conducting ground connections are created between 19" devices via the metal rails - the most frequent cause of hum noise.
Humfrees interrupts these ground loops. Devices are attached to the rack rails while electrically separated from each other. Additional plus: The front panels of the devices are protected against assembly damage.