Thomann Breathing Bag 5 Liter Set
        
          $ 3.60
        
        
          $ 17.99
        
      
      
      
        
      
      
    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.