Radial SW8 – 8-Channel Audio Auto-Switcher for Redundant Playback Systems (R800-8100-00)
Safe and secure checkout
The Radial Engineering SW8 is a professional 8-channel auto-switcher designed to ensure seamless audio playback during live performances. Perfect for musicians, playback techs, and production teams using backing tracks or sound effects, the SW8 allows you to create a redundant setup by automatically switching from a primary to a backup playback system the moment an issue is detected—without interrupting the show.
Whether triggered automatically by signal loss or manually via front panel or footswitch, the SW8 is the trusted live performance safety net used on major tours and stage productions worldwide.
Key Features
-
8-Channel Auto-Switching – Detects dropouts and instantly reroutes audio to a backup playback device
-
Manual or Automatic Switching – Toggle via front panel or JR-2 footswitch (sold separately)
-
Transformer-Isolated Mic or Line Level Outputs – Clean audio delivery to any sound system
-
Expandable System – Link multiple SW8 units for setups beyond 8 channels
-
SMPTE-Compatible – Use timecode to trigger auto-switching with precise control
-
Contact Closure Alarm Input – Integrate with external trigger devices for automated failover
-
Built for the Road – 14-gauge steel housing ensures durability in professional touring environments
Why Choose the Radial SW8?
The SW8 removes the risks associated with single-source playback during critical performances. Designed for zero-interruption live audio, it’s trusted by professional touring acts, theatrical productions, broadcast engineers, and AV technicians worldwide. Its transformer isolation eliminates hum, buzz, and ground loops, while dual power supplies and robust construction make it a truly fail-safe component in any pro audio rig.
Specifications
| Feature | Detail |
|---|---|
| Audio Circuit Type | Passive signal path with active relay switching |
| Number of Channels | 8 |
| Frequency Response | 20Hz – 20kHz |
| Gain | -20dB |
| Dynamic Range | >120dB |
| Total Harmonic Distortion | 0.00% |
| Max Input Level | +26dBu |
| Input Impedance | 140kΩ balanced |
| Output Impedance | 150Ω balanced |
| Isolation Transformer | Eclipse ET-DB2 |
| Common Mode Rejection | -112dB at 50/60Hz |
| Connectors | Inputs: ¼” TRS, D-Sub; Outputs: XLR, D-Sub |
| Remote Control | Compatible with JR-2 footswitch (XLR) |
| Chassis | 14-gauge steel |
| Dimensions (L x W x H) | 17.5" x 6" x 1.75" (44.5cm x 15.25cm x 4.5cm) |
| Weight | 9.2 lb (4.2 kg) |
| Power | Dual +15VDC/400mA power supplies included |
| Conditions | Use in dry locations, 5°C to 40°C |
| Warranty | Radial 3-year, transferable |