C2G/Cables to Go 40479 Component Video with Stereo Audio Isolation Transformer Every installation technician has faced it or soon will - the dreaded hum bars on the screen, a telltale sign of a ground loop. Ground loops are caused by voltage potential differences at the ground point on your equipment. Channels: 3 video 2 audio Channels: 3 video 2 audio Video Bandwidth &gt; 300 MHz Audio Bandwidth: 20 Hz ~ 1 MHz