Radial Engineering TWIN-ISO Two Channel Balanced Line Isolator w/ Jensen TransformersThe Radial Twin Iso is a balanced two channel, line level isolator that has been specifically developed for professional touring systems as a means to eliminate hum and buzz caused by ground loops when interfacing various equipment such as two consoles, remote towers and drive racks. The Radial Twin Iso provides the very best signal transfer without distortion caused by saturation or phase shift. All connections are balanced XLR following the AES