RB-DA4x5, 4 in / 4 x 5 out distributor / mixer. The RB-DA4x5 is a combined distribution amplifier and mixer. It has 4 balanced inputs (XLR) and 4 groups of 5 balanced outputs each (D-Sub). With dip switches, you can select a single or a combination of inputs (which are mixed) to each output group. Inputs and output groups have separate level adjustments (chisel). There is also a built-in tone generator and level indication with multi-color LED. Size 19 inches / 1U.