RDL Audio Selector for SourceFlex Distributed Audio System





The D SERIES-SFRC8L Audio Selector is a SourceFlex module for wall mounting in a room, providing source selection from up to 8 audio sources. A numeric display shows the selected source. There are two line-level audio outputs on the rear of the unit, balanced and unbalanced, to feed an external power amplifier.

The balanced line output level is +4 dBu nominal. The unbalanced output is -10 dBV.

The D SERIES-SFRC8L is designed to be mounted in a wall box. Wiring is connected through a rear-panel detachable terminal block. The -SFRC8L is ideal for office distributed sound systems with background music and a paging source. 


  • Single Room Listening Station with In-Wall Controls
  • Source Selection Pushbutton
  • Selection From up to 8 Audio Sources
  • Line-Level Audio Output
  • Mounts In Wall Using US Single Gang Electrical Box or RDL® WB-1U
  • Compatible with Other RDL Wall Plates and Controls
  • Ideal for Office Distributed Sound Systems with Music and Paging
  • Input: 10-position detachable terminal block 
  • Display: 7-segment red LED (0 = off or Paging; 1 through 8 = selected channel) 
  • Selector: Momentary button channel SELECT 
  • Frequency Response: 20 Hz to 20 kHz (±0.1 dB) THD+N < 0.1% (20 Hz to 20 kHz)
  • Noise: < -85 dB (Below +4 dBu) 
  • Control Signals: dc (DISPLAY RAMP and CONTROL conductors between remote Listening Station and Controller) 
  • Line Outputs (2): +4 dBu balanced, -10 dBV unbalanced, nominal 
  • Power Requirement: 24 Vdc @ 30 mA, Supplied from SourceFlex controller 
  • Ambient Operating Environment: 0° C to 50° C Maximum; 20° C Recommended 
  • Dimensions: Height: 4.13 in. 10.49 cm; Width: 1.7 in. 4.32 cm; Depth: 2.05 in. 5.21 cm 
  • Package Type: Cardboard Box 
  • Package Dimensions: 3.625 x 4.625 x 2.125 in. 
  • Shipping Weight: .44 lbs. 
  • WEEE weight: 0.305 lbs. 
  • Tariff code: 8518.40.2000 
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