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Radio Design Labs RU-ADA8D
2x8 Stereo Audio Distribution Amplifier

OUR PART #  RUADA8D

Our Price: $389.61
List Price: $521.18
You save 25%! (Low Price Guarantee)
In Stock

Recommended Accessories

Radio Design Labs RU-ADA8D Features:

  • 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

NOTE: Radio Design Labs' PS-24AS power supply is NOT included but is required in order to power this product.  Please see the "Accessories" tab or click here for more information on the PS-24AS power supply.

Radio Design Labs' RU-ADA8D is an 8-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 2 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.

Typical Performance:

  • Inputs (2): Stereo (A/left and B/right) on detachable terminal block
  • Input Impedance: 20 kOhm balanced or 10 kOhm 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 ohms balanced; 75 ohms 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)
  • 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" W x 1.65" H  x 3.54" D (14.6 x 4.18 x 9.0 cm); 3.9" D (9.9 cm) with connectors
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Radio Design Labs RU-RA3R Rack Adapter for (3) RACK-UP Series Modules
The RU-RA3R from RDL rack mounts (3) RACK-UP modules in fixed or mobile installations. Metal RACK-UP series products drop into the chassis, slide into position and are secured by tightening two screws provided with the RACK-UP product ...
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Radio Design Labs RU-HRA1 10.4" Rack Mount for 1 Rack-Up Series Product
Radio Design Labs' Ru-HRA1 rack mounts 1 RACK-UP module or mounting frame for AMS accessories.  Fits 10.4" racks.Shipping Weight: 0.34 lbsPackage Dimensions: 2" x 2" x 12.25" (5.08 x 5.08 x 31.12 cm)
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Radio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply, North American Model
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Radio Design Labs RU-BR1 Mounting Bracket for RACK-UP Series
The RU-BR1 mounts an RDL 'RACK-UP' module above or below a horizontal surface.
33.83 39.92 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
DIN Rail Adapter for Rack-Up
Radio Design Labs DRA-35R DIN Rail Adapter for Rack-Up
The DRA-35R provides DIN rail mounting for any RDL RACK-UP® or MAX RACK-UP module, allowing full access to the front and rear panels of the mounted modules. The DRA-35R attaches to a 35 mm DIN Rail. 
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Usually ships in 7-14 business days.
Need it sooner? Call us!

Radio Design Labs RU-ADA8D
2x8 Stereo Audio Distribution Amplifier

OUR PART #  RUADA8D

Product Information:

Radio Design Labs RU-ADA8D Features:

  • 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

NOTE: Radio Design Labs' PS-24AS power supply is NOT included but is required in order to power this product.  Please see the "Accessories" tab or click here for more information on the PS-24AS power supply.

Radio Design Labs' RU-ADA8D is an 8-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 2 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.

Typical Performance:

  • Inputs (2): Stereo (A/left and B/right) on detachable terminal block
  • Input Impedance: 20 kOhm balanced or 10 kOhm 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 ohms balanced; 75 ohms 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)
  • 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" W x 1.65" H  x 3.54" D (14.6 x 4.18 x 9.0 cm); 3.9" D (9.9 cm) with connectors
Rack Adapter for (3) RACK-UP Series Modules
Radio Design Labs RU-RA3R Rack Adapter for (3) RACK-UP Series Modules
The RU-RA3R from RDL rack mounts (3) RACK-UP modules in fixed or mobile installations. Metal RACK-UP series products drop into the chassis, slide into position and are secured by tightening two screws provided with the RACK-UP product ...
56.25 75.25 25
In Stock
10.4" Rack Mount for 1 Rack-Up Series Product
Radio Design Labs RU-HRA1 10.4" Rack Mount for 1 Rack-Up Series Product
Radio Design Labs' Ru-HRA1 rack mounts 1 RACK-UP module or mounting frame for AMS accessories.  Fits 10.4" racks.Shipping Weight: 0.34 lbsPackage Dimensions: 2" x 2" x 12.25" (5.08 x 5.08 x 31.12 cm)
29.29 39.17 25
In Stock
24 VDC 500mA Switching Power Supply, North American Model
Radio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply, North American Model
Radio Design Labs' PS-24AS is a 24 VDC/500 mA switching power supply with a North American AC plug. Compatible with various RDL products.Radio Design Labs PS-24AS Specifications: Input: 100 to 240 VAC Output: 24 Vdc, 500 mA (UL, ...
23.40 31.28 25
In Stock
Mounting Bracket for RACK-UP Series
Radio Design Labs RU-BR1 Mounting Bracket for RACK-UP Series
The RU-BR1 mounts an RDL 'RACK-UP' module above or below a horizontal surface.
33.83 39.92 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
DIN Rail Adapter for Rack-Up
Radio Design Labs DRA-35R DIN Rail Adapter for Rack-Up
The DRA-35R provides DIN rail mounting for any RDL RACK-UP® or MAX RACK-UP module, allowing full access to the front and rear panels of the mounted modules. The DRA-35R attaches to a 35 mm DIN Rail. 
17.27 20.38 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
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