Pro AV Catalog

RDL, Radio Design Labs

659 6th Street
Prescott, AZ 86301
United States
Project List
Simple Two Room Audio Combining System
Posted on Friday, January 19, 2024

Jan. 19, 2024 - A common application we are asked to help with is a simple Two Room Combining System. The system shown in the drawings below allows the user to combine the outputs of the ROOM A and ROOM B mixers and route the combined signals to the ROOM A and ROOM B amplifiers.

The D-RT2 Remote Control provides a visual indication of the system status:

  • ON = Combined
  • OFF = Not Combined

Products referred to in the drawings include:

  • 2 ST-UMX3 Universal Audio Mixer
  • 2 STD-600 – Passive Audio Divider / Combiner
  • 2 ST-SSR1 – Line-Level Audio Switch – 2 x 1
  • 1 PS-24AS or PS-24AX – 24 Vdc Switching Power Supply, 500 mA
  • 1 D-RT2 – Remote Control Selector
  • 2 FP-PA35A 35 W Audio Amplifier w/ Power Supply
  • 2 D-J3 – Mic/Line Input Assembly
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