Easy Impedance matching. Dual Channel. Ground Lift Switch. Mono Stereo SwitchImpedance: 50k/600 Ohms Dimensions: 137 x 95 x 48 Weight: 533g. A two channel DI box- suitable for connecting guitars and similar equipment to mixer consoles with an XLR balanced connector. Each input has a high impedance input and link output. The box includes a mono/stereo and ground lift switch. A good way to remove ground loop hums whilst matching input and output impedance’s.. di box-Impedance Matching di box-2 channel di box