The Jensen Iso-Max JT-6110K-B is a line input transformer with a 4:1 or 8:1 step-down ratio and higher level handling for "balanced bridging" inputs. This transformer is designed for use in wide band line input stages. The secondary source impedance of only 87 Ohm is an excellent match to ultra-low noise amplifiers. The primary is fully balanced and its leads may be reversed to invert polarity, if required. A 30 dB magnetic shield package is standard.