RDL RU-MLD4 - Audio distribution amplifier

Inputs:XLR(front); detachable term block(rear)Input level (for +4 dBu output): Switch-selectable (rear panel) MIC/LINEMic:-48 dBu to -3 dBu (LO GAIN); -65 dBu to -20 dBu (HI GAIN)Line:-15 dBu to +28 dBuInput Impedance:Mic:2 kΩ balanced, switchable 24 V phantom (IEC 1938: 1996-12)Line: 10 kΩ balanced; may be connected unbalancedOutputs (4):XLR(front); detachable term block(rear)Output level:Switch-selectable (rear panel) MIC/LINEOutput Impedance:150 Ω balancedGain Trim:Front panel adjustableMic:Off to 52 dB gain (LO GAIN); Off to 69 dB gain (HI GAIN)Line:Off to 20 dB gainFrequency Response:Mic:80 Hz to 50 kHz (+/- 0.75 dB); < 10 dB @ 20 Hz (integral high-pass filter)Line:15 Hz to 50 kHz (+/- 0.1 dB)THD+N:< 0.1% (Mic); < 0.005% (Line)CMRR: 50 dB (Line)Residual Noise (below +4 dBu LINE output or -45 dBu MIC output):Mic:-79 dB (50dB Gain); -70 dB (Mic 60dB Gain)Line:-85 dBHeadroom: 20 dB (above +4 dBu LINE output)Power Requirement:GROUND-REFERENCED, 24 to 33 Vdc @ 80 mAAmbient Operating Environment:0 C to 55 C