Radial SW4 – 4-Channel Transformer-Isolated Audio Switcher for Consoles & Wireless Systems (R800-8110-00)

The Radial Engineering SW4 is a professional-grade 4-channel balanced audio switcher designed for seamless transitions between multiple mixing consoles, wireless systems, or playback devices in live sound environments. Ideal for festivals, broadcast, and touring applications, the SW4 ensures clean, noise-free switching with transformer isolation on every output.

Whether you’re managing two front-of-house consoles, switching between redundant wireless racks, or coordinating multiple audio sources, the SW4 delivers unmatched control, flexibility, and signal integrity.

Key Features

• 4 x AB Selectable Channels – Route up to four stereo or mono balanced audio signals

• Transformer-Isolated Outputs – Eliminates hum and buzz from ground loops

• Linked Switching – Link channels for stereo or quad switching as needed

• A+B Mix on Channel 1 – Keep an MC mic or priority input active at all times

• Monitoring & Cueing – PFL switches and headphone output for pre-listening

• Flexible Output Options – XLR and ¼" jack outputs with mono/stereo bus assign

Why Choose the Radial SW4?

The SW4 simplifies complex routing tasks by allowing engineers to easily toggle between mixing consoles, playback machines, or wireless microphone systems—all with clean, uninterrupted signal transitions. The A+B summing, PFL monitoring, and transformer isolation make it a critical tool for live event engineers who demand reliability and versatility.

Built with rugged steel construction and intuitive controls, the SW4 is ready for life on the road and built for critical applications where audio quality and stability matter most.

Specifications