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

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Analog Audio Input
StandardsAny analog audio signal
Number of Inputs1 (Balanced or Single ended)
Connector3 pin removable terminal strips
Input Step Gain0dB 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 gain44kΩ
+6dB input gain26kΩ
Analog Audio Output
Number of Outputs4
Connector3 pin removable terminal strips
Output Step Gain0, 3.5 or 9.5dB (configurable with jumpers)
Max Output Level
Across hi-impedance load+28dBu
Into 600Ω load+24dBu
Frequency Response±0.03dB 20Hz to 20kHz
THD+N0.001% 20Hz to 20kHz @ 28dBu, unweighted RMS
Isolation> 100dB @ 1kHz, 100dB @ 20kHz
Voltage+12V DC
Power6 Watts
Number of Slots1

Ordering Information

500ADA-AUDAnalog Audio Distribution Amplifier (1 x 4)
500FR3RU exponent Compact High Density Distribution Frame
S501FR500 Series Standalone Enclosure
500FCVistaLINK® Frame Controller
CP-2116E-HRemote Control Panel
CP-2232ERemote Control Panel