Sigma ADA-21S user manual

Summary of the content on the page No. 1

ADA-21S

STEREO AUDIO
DISTRIBUTION AMPLIFIER
INSTRUCTION MANUAL























SIGMA ELECTRONICS, INC.
P.O. Box 448
1027 COMMERCIAL AVENUE
EAST PETERSBURG, PA 17520-0448
(717) 569-2681

Summary of the content on the page No. 2

ADA-21S STEREO AUDIO DISTRIBUTION AMPLIFIER GENERAL: The ADA-21S Stereo Audio Distribution Amplifier is designed to provide three (3) dual-channel outputs from a stereo audio signal source. The module is compatible with either balanced or unbalanced audio signals on the input and outputs. Outputs can be mixed between balanced and unbalanced configuration dependent on the requirement of the destination equipment. This module must be installed in a Sigma Frame for proper operation. Po

Summary of the content on the page No. 3

ADA-21S STEREO AUDIO DISTRIBUTION AMPLIFIER AUDIO CONFIGURATIONS: The source and destination audio equipment must be evaluated to determine if they are Balanced or Unbalanced. After determination is made, refer to the drawings provided to select the proper audio configuration. The outputs can be any combination of balanced or unbalanced. ADA-21 ADA-21 + + + + + + + + C C C C C C C C Open - - - - - - - IN OUT IN OUT Balanced In to Balanced Out Balanced In to U

Summary of the content on the page No. 4

ADA-21S STEREO AUDIO DISTRIBUTION AMPLIFIER ADJUSTMENTS: The ADA-21S has no adjustments other than the front panel gain control. SPECIFICATIONS: INPUT: ...............................................Dual channel, Balanced, +24 dBm Maximum INPUT IMPEDANCE: ........................30 kΩ Balanced, DC coupled OUTPUT: ...........................................+24 dBm Maximum OUTPUT IMPEDANCE: ....................100Ω Balanced, DC coupled LEFT/RIGHT SEPARATION: ............All outpu