RDL RU-ADA4D 4 Channel Stereo Audio Distribution Amplifier

RDL RU-ADA4D 4 Channel Stereo Audio Distribution Amplifier The RU-ADA4D is a four channel stereo audio distribution amplifier with input and output gain adjustments and input level metering. The module may be operated in mono to provide up to eight distributed mono signals. The inputs and outputs are connected on rear-panel detachable terminal blocks. Key Features Stereo Audio Distribution with 4 Outputs Mono Audio Distribution with 8 Outputs Front-Panel Input Level Trimmers Dual-LED VU Meter for Each Input Channel Front-Panel Output Level Trimmers Inputs and Outputs on Rear Panel Detachable Terminal Blocks Exceptional Audio Quality for the Most Demanding Applications Technical Specifications Inputs (2) Stereo (A/left and B/right) on detachable terminal block Input Impedance 20 k Ohm balanced or 10 k Ohm unbalanced Input Level +4 dBu balanced (nominal), +25 dBu maximum; -10 dBV unbalanced Input Gain Adjustments (2) -5 dB to +15 dB (rel. +4 dBu balanced); -3 dB to +17 dB (rel. -10 dBV unbalanced) Input Metering (2) Dual-LED VU Meter for Input A and Input B Mono mode Rear-panel switch-selectable (input A feeds all 8 outputs) Outputs (8) Stereo, A (4), B (4) on detachable terminal blocks Output Impedance 150 Ohm balanced; 75 Ohm unbalanced Output Level +4 dBu balanced (nominal), +24 dBu maximum; -10 dBV unbalanced Output Level Adjustments (8) -9 dB to +6 dB (rel. +4 dBu, balanced); -3 dB to + 12 dBu (rel. -10 dBV, unbalanced) Frequency Response 10 Hz to 165 kHz (+/- 0.25 dB); 10 Hz to 35 kHz (+/- 0.01 dB) THD+N < 0.0025% (20 Hz to 20 kHz) Headroom > 20 dB (above +4 dBu input or output) Noise < -92 dB (below +4 dBu output, 20 Hz to 20 kHz) Crosstalk < -90 dB (20 Hz to 5 kHz); <-80 dB (5 kHz to 20 kHz) CMRR > 90 dB (100 Hz) Power Requirement GROUND REFERENCED, 24 Vdc @ 82 mA (idle, nominal), 120 mA (max.) Ambient Operating Environment 0 C to 50 C Case dimensions 5.75" (14.6 cm)W x 1.65" (4.18 cm)H x 3.54" (9.0 cm)D; 3.9" (9.9 cm)D with connectors