Expanding on Earthquake's line of audio problem-solving products: The GLI-200 ground loop isolator. The standard A/V receiver output is 600Ω yet most ground loop isolators on the market today have 200ω at best. When using these substandard products, your A/V receiver has to deliver 3x more current or compromise the output Level. The GLI-200 comes with an impedance of 600Ω right out of the box, matching that of the industry standard. Earthquake's GLI-200 is constructed with high-quality components and will not roll-off the low frequency response due to undersized transformers resulting in substandard performance. It was designed to reduce most of the dreaded buzz and ground loop noise while maintaining high-quality sound from your audio system. The compact and rugged construction of the GLI-200 allows for it to fit into virtually any audio system, and can be mounted to any surface with its built-in mounting bracket. This will give you a cleaner looking install and allow it to be hidden out of sight. Not all hum or buzz noise situations are the same – follow the Earthquake Sound wiring guide to achieve the best performance. When it comes to audio noise and hum issues, the GLI 200 offers great problem solving solutions to most ground loop issues facing audio professionals and installers to the everyday home and car audio enthusiast.