Radio Design Labs - RDL RU-ADA8D Audio Distribution Amplifier
Audio Distribution Amplifier - Balanced/Unbalanced - 2x8 1x16
The RU-ADA8D is an eight channelstereoaudio 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 dBVunbalanced and +9 dBubalanced may be set to the proper operating level as indicated by a dual-LEDVU 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 gainpotentiometer 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.
StereoAudio Distribution with 8 Outputs
MonoAudio Distribution with 16 Outputs
Front-Panel Input Level Trimmers
Dual-LEDVU 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
Inputs (2): Stereo (A/left and B/right) on detachable terminal block
Input Impedance: 20 kΩ balanced or 10 kΩ 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)
Power Requirement: GROUND REFERENCED, 24 Vdc @ 140 mA (idle, nominal), 170 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
Radio Design Labs - RDL
Distribution Amplifiers, Format Converters, Install & Contracting Amplifiers
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Performance Audio is an authorized Radio Design Labs - RDL dealer. RDL is the world's premier manufacturer of high-quality audio, video and control modules. The concept of application-specific modules was first introduced by RDL more than twenty years ago... a concept promoting unsurpassed value and performance. A concept which has attained widespread popularity and is a proven success in many thousands of facilities around the world. As the inventor of application-specific modules, RDL continues to lead the industry with solutions to specific problems as well as building blocks of quality system designs.
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