Radial Engineering SW4 Four Channel Audio Switcher

The Radial SW4 is a four channel balanced audio switcher designed for wireless systems, mixing consoles and digital guitar processors to provide backup or greater operational flexibility in a live performance or concert setting.

Each of the four channels is equipped with two XLR inputs and a transformer isolated output that is capable of over +20 dB signal handling at all frequencies. This makes the SW4 equally viable for wireless mic systems as it is for switching high output mixing consoles. Channels may be linked together for stereo, tri-channel or quad switching and additional SW4s may be linked for larger system requirements and remotely controlled if need be. Channel-1 is augmented with a 'mix' function that passively sums both inputs together for simultaneous use. All channels are routed to a master bus with 1 & 3 assigned left, and 2 & 4 assigned right.

For monitoring, each channel is equipped with a 3-position PFL switch that selects between source-A, source-B or the stereo bus via the built-in headphone amplifier. The bus may be switched to mono when used with wireless guitar systems. This is augmented with two isolated 1/4" guitar outputs with a top-mounted 'set and forget' level control and a front-panel mono output to feed a monitor, tuner or guitar amp.

For seamless switching between acts or between wireless systems, get the Radial SW4 today!

Applications

• Switch between up to four pairs of wireless microphone systems
• Pair inputs 1/2 and 3/4 to switch between stereo systems
• Toggle between two mixer consoles at festivals
• Seamlessly switch between the live band's mixer and the DJ board

Features

• Switch up to 4 systems
• Link channels for stereo or quad switching
• Transformer isolated to eliminate noise

Specifications

• Audio circuit type: Passive Transformer Coupled with Relay Switching
  • Transformer: Eclipse ET-LD2 line output
• # of Channels: 4 x AB select
• Frequency Response: 10 Hz to 40 kHz
• Dynamic Range: 136 dB
• Total Harmonic Distortion: 0.002%
• Phase Deviation: < 3° at all frequencies
• Intermodulation Distortion: 0.01%
• Input Connectors: XLR
• Output Connectos: XLR male, 1/4" TS
• Input Impedance: Load impedance in parallel with 10K
• Maximum Input:
  • +26 dBu channel to channel
  • +17 dBu channel to bus
• Channel to Channel Gain:
  • -0.26 dB with 10 kΩ load
  • -2.3 dB with 600 Ω load
• Channel to Bus Gain: + 8 dB with 10 kΩ load
• Channel Output Impedance: 160 Ω
• Bus Output Impedance: 500 Ω
• Bus Output: Stereo or mono assignable
• General
  • Power: External 100V - 240V AC with 48V Phantom
  • Construction: 14-gauge steel chassis and outer shell
  • Dimensions (H x W x D): 1.75" x 17.5" x 6" (1.75 x 44.5 x 15.25 cm)
  • Conditions: For use in dry locations only between 5°C and 40°C (41°F and 104°F)