High-quality, passive audio interface 8 high performance transformers XLR, 1/4" phone, and RCA type phono connections on all inputs and outputs. Reversible rack mount ears Separate input and output signal grounds reduce hum Audio transformers have an extremely flat and wide frequency response Very clean and neutral sound with a wide variety of signal sources Can be used for signal taps or as a signal splitter Use as a safer connection between two audio systems (ie: Computer workstation or monitor system) 19" 1U black all steel case