Sonifex Redbox RB-DA6, 6 Channel Stereo / 12-Channel Mono Distribution Amplifier, 2x XLR inputs, Input impedance 20 kOhm, Max. Input level +28 dBu, 12x XLR outputs, Output Impedance 50 Ohm, Max output level +28 dBu, Harmonic distortion less than 0.01%, 19 "", 1U, Dimensions: 48cm (W) x 10.8cm (D) x 4.2cm (H), Weight: 1.3 kg