radial engineering j-iso jensen transformer equipped stereo isolator +4db to -10db converter radial engineering the radial engineering j-iso stereo interface takes a high output +4dbu line level signal and converts it so that it may be connected to low-level unbalanced devices (-10dbv). its superior jensen transformer-isolated circuitry eliminates noise and hum and sounds great. the radial engineering j-iso stereo interface takes a high output +4db line level signal from a mixing console and converts it so that it may be connected to low-level unbalanced devices. in an effort to adapt to all of the variables, the output may be adjusted with a recessed set and forget level control. this makes it easy to connect professional audio gear with devices such as computer sound cards, ipods, or -10db recorders. the radial j-iso stero isolator has the smart features of the radial pro iso but with the added sonic excellence of genuine jensen audio transformers. jensen transformers are equipped with nickel cores for high input levels before saturation. their mu-metal shields offer protection against electromagnetic fields. the result: 100% ground loop isolation for noise elimination, virtually zero phase shift, and they sound great! to reduce noise problems, the j-iso is equipped with an audio isolation transformer on each channel that helps eliminate hum and buzz caused by ground loops. connections are straight forward: inputs are standard balanced xlr female while outputs include choice of stereo rca, 3.5mm or standard 1/4". all connectors and controls are protected with a book-end design and the j-iso may be rack-mounted in the optional j-rak (sold separately) or secured to a podium using the j-clamp. this makes the j-iso an easy-to-use solution for interfacing between pro and consumer electronics and an ideal interface for recording events. balanced stereo line-level inputs with xlr connectors accept the +4db professional signal standard. rugged xlr connectors are glass filled nylon, 100% electrically isolated, and eliminate chassis ground potential. ground lift on outputs can ...