RDL SAS-8C – 8-Station SourceFlex Distributed Audio Controller

What is the RDL SAS-8C?

The RDL SAS-8C is an eight-station audio controller for the RDL SourceFlex distributed audio system. It controls eight SourceFlex listening stations, lets the installer set a maximum listening level at each station and protects each station's power feed with an auto-resetting fuse. RDL notes that using the SAS-8C in large SourceFlex systems gives the most economical cost per station, which suits libraries, training rooms and listening labs.

How does it work?

Each remote listening station connects to the SAS-8C with six-conductor wire, and the power conductor to each station is protected by an automatically resetting fuse. LEDs show when output voltage is present at the remote outputs. The controller accepts a paging input and eight switched audio inputs, each 100 kΩ balanced or unbalanced line level on detachable terminal blocks, with input level adjustable from -22 dBu to +4 dBu nominal on 25-turn pots. A paging terminal activates paging with an external closure to ground, and a DIP switch sets the number of inputs used. A green LED indicates audio level by intensity and a red LED marks 0 dB level for setup. Output gain range is 40 dB and presettable with a trimmer to cap the listening level at each station. A 24-pin ribbon-cable bus provides daisy-chain connections to and from the SAS-82 and the RDL SAS-8I audio input chassis. Listening stations such as the RDL D-SFRC8 room control station and SAS-HC8 headphone control station connect to the outputs. The SAS-8C runs on ground-referenced 24 Vdc at 1 A; RDL recommends the RDL PS-24V3A (USA) or PS-24V3 (international) supply, not included, and lists the RK-2U utility rack chassis for mounting.

What are the key features?

• Eight-station control — Controls eight SourceFlex remote listening stations.
• Per-station level limit — Installer-set maximum listening level at each station.
• Fused station power — Auto-resetting fuses protect the power feed to each listening station.
• Eight switched inputs plus paging — Accepts eight balanced or unbalanced line sources and a paging input.
• Daisy-chain bus — Ribbon-cable bus connects to and from the SAS-82 and SAS-8i.
• Simple station wiring — Six-conductor wire connects each remote station.
• Economical at scale — RDL cites the lowest cost per station in large SourceFlex systems.

Where is it typically used?

• Training room
• Multi-purpose room
• Government space
• House of worship

Technical Specifications

Frequently Asked Questions