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Analog Audio Distribution Amplifier

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The 500ADA-AUD Analog Audio distribution amplifier is a general purpose 1x4 amplifier for distributing analog audio signals.

The 500ADA-AUD can be operated with either differential or single ended inputs and offers a wide range of gain adjustment to handle a wide variety of input signals.

The 500ADA-AUD is housed in the 3RU 500FR Exponent frame that will hold up to 16 modules.


  • Differential and single ended input (automatic single ended to differential conversion)
  • High impedance inputs
  • Low impedance outputs
  • Wide gain adjustment range
  • High common mode range and common mode rejection ratio
  • Very high SNR
  • Very low THD+N
  • Card Edge LED's

  • Module Status/Local Fault
  • Power Supply Status


Analog Audio Input

Standards Any analog audio signal
Number of Inputs 1 (Balanced or Single ended)
Connector 3 pin removable terminal strips
Input Step Gain 0dB or +6dB (configurable with jumpers)
Fine Gain Control -5 to +5dB (card edge pot adjustable)
Max Input Level
0dB input gain +34dBu
+6dB input gain +28dBu
Common Mode Rejection > 105dB @ 60Hz
Common mode range
0dB input gain > ±22V
+6dB input gain > ±7V
0dB input gain 44kΩ
+6dB input gain 26kΩ

Analog Audio Output

Number of Outputs 4
Connector 3 pin removable terminal strips
Output Step Gain 0, 3.5 or 9.5dB (configurable with jumpers)
Max Output Level
Across hi-impedance load +28dBu
Into 600Ω load +24dBu
Impedance 66Ω
Frequency Response ±0.03dB 20Hz to 20kHz
THD+N 0.001% 20Hz to 20kHz @ 28dBu, unweighted RMS
Isolation > 100dB @ 1kHz, 100dB @ 20kHz


Voltage +12V DC
Power 6 Watts


Number of Slots 1

Ordering Information

500ADA-AUD Analog Audio Distribution Amplifier (1 x 4)


500FR 3RU Exponent Compact High Density Distribution Frame
S501FR 500 Series Standalone Enclosure


500FC VistaLINK® Frame Controller
CP-2116E-H Remote Control Panel
CP-2232E Remote Control Panel