Intelix Analog Audio Baluns.The Intelix AVO-A2-F is an ultra-high performance audio balun designed for applications where audio quality is critical, such as high-end residential and broadcast. * Used in pairs, the AVO-A2-F is the perfect solution for transmitting two channels of analog audio over structured cabling, such as Cat 5. * Simply place an AVO-A2-F at each end of your cable run and connect your source and destination devices.The Intelix AVO-A4-F is an ultra-high performance audio balun designed for applications where audio quality is critical, such as high-end residential and broadcast.