4-Channel Ground Loop Insulator With Noise Removal With : help four-channel ground loop insulator isolate and eliminate the noise caused by the ground loop in the audio cable The insulator ensures that the screen grounding on each audio cable is isolated from the grounding of the equipment, which can cause noise audible noise when amplified It has four channels, so you get two pairs of stereo input and output ( ) The nominal impedance of the DC device is 100 ohms, and the audio impedance is 3500 ohms 1000 Hz The nominal input power is 50 watts, the maximum level is 100 watts Each of the plugs and sockets is gold-plated to work, corrosion-free connections - Inner mesh panties Material: plastic Dimension: . 330 mm mm x 20 mm / 13 x 1.8 x 0.8 inch contains: 1 loop insulator