RDL®

RU-ADA8D

Audio Distribution Amplifier

SKU: RU-ADA8D
  • Stereo Audio Distribution with 8 Outputs
  • Mono Audio Distribution with 16 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
  • Recommended Power Supply
    PS-24AS (USA)PS-24AX (International)
    Category:

    Description

    The RU-ADA8D is an eight 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 sixteen distributed mono signals. The inputs and outputs are connected on rear-panel detachable terminal blocks.

    Each of the two line level inputs accepts either a balanced or an unbalanced signal. Each input is equipped with a front panel INPUT GAIN trimmer. Input signal levels between -14 dBV unbalanced and +9 dBu balanced may be set to the proper operating level as indicated by a dual-LED VU meter. This assures ample headroom at all normal operating levels. The maximum input level is +25 dBu.

    A rear-panel switch selects between stereo and mono operation. In the mono position, input A (left) is used to drive all 16 output channels. When the module is used in a monaural system, only input A must be wired.

    Audio outputs are isolated from each other and may be wired balanced or unbalanced. Each of the outputs is provided with a front panel screwdriver adjusted OUTPUT LEVEL control. Relative to a balanced +4 dBu output level, this gain potentiometer allows an adjustment range from -9 dB to +6 dB. Relative to an unbalanced -10 dBV output, each output potentiometer allows an adjustment from -3 dB to +12 dB.

    The RU-ADA8D offers exceptional headroom, very low distortion, excellent crosstalk isolation, wide flat frequency response and extremely low noise with very high common-mode signal rejection. It provides exceptional audio performance for the most critical applications in a professional audio environment.

    The RU-ADA8D operates from 24 Vdc connected through a rear-panel detachable terminal block.

    Specifications

    Inputs (2):Stereo (A/left and B/right) on detachable terminal block
    Input Impedance:20 kΩ balanced or 10 kΩ 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 16 outputs)
    Outputs (16):Stereo, A (8), B (8) on detachable terminal blocks
    Output Impedance:150 Ω balanced; 75 Ω unbalanced
    Output Level:+4 dBu balanced (nominal), +24 dBu maximum; -10 dBV unbalanced
    Output Level Adjustments (16):-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:< -85 dB (20 Hz to 1 kHz); <-70 dB (1 kHz to 20 kHz)
    CMRR:> 90 dB (100 Hz)
    Ambient Operating Environment:0° C to 50° C
    Power Requirement:GROUND REFERENCED, 24 Vdc @ 140 mA (idle, nominal), 170 mA (max.)
    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
    Package Type:Cardboard Box
    Package Dimensions:6 x 6 x 2.625 in.
    Shipping Weight:1.585 lbs.
    WEEE weight:1.34 lbs.
    Tariff code:8543.70.9860

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    Dimensions

    RU-ADA8D

    Downloads

    DocumentsFormat
    DatasheetPDF
    CAD FilesUnitsSizeFormat
    Engineering Functional BlockAmerican8.98 KBDXF
    Panel Diagram - FrontAmerican26.93 KBDXF
    Panel Diagram - RearAmerican21.73 KBDXF
    Panel Diagram - FrontMetric26.97 KBDXF
    Panel Diagram - RearMetric21.75 KBDXF
    High Res ImagesFormat
    ru-ada8d.zipTIF
    Declaration of Conformity
    Download

    Diagrams

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