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Radial 4 Channel Festival/Club Switcher Between Music Source/Mixing Consoles

Product Code RARADIALSW4
Manufacturer Radial

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  • Switch up to 4 sets of wireless systems
  • Link channels for stereo or quad switching
  • Toggle between two consoles at festivals
  • Transformer isolated to eliminate noise

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 +20dB 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 ¼" 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.

These features combined make the Radial SW4 the ideal choice for backup systems and for switching multiple balanced audio channels simultaneously.


Audio circuit type:  Passive Transformer Coupled with Relay Switching
Number of channels: 4 x AB select
Frequency response:  10Hz to 40Khz
Dynamic range:  136dB
Total harmonic distortion:  0.002%
Phase deviation:  <3° at all frequencies
Inermodulation distortion:  0.01%
Input impedance:  Load impedance in parallel with 10K
Maximum input:  +26dBu channel to channel
Maximum input:  +17dBu channel to bus
Channel to channel gain:  -0.26dB with 10k Ohm load
-2.3dB with 600 Ohm load
Channel to bus gain:  + 8dB with 10k Ohm load
Channel output impedance:  160 Ohms
Bus output impedance:  500 Ohms
Transformer: Eclipse ET-LD2 line output
Input pad:  Variable trim control 
Switches:  AB select on each channel
PFL (pre-fade listen): A & B per channel, master bus
Bus:  Master bus out with headphones
XLR configuration:  AES standard pin-1 ground, pin-2 (+), pin-3 (-)
Input connectors: XLR female
Output connectors: XLR male, 1/4" guitar
Bus output: Stereo or mono assignable
Ground lifts: On all channels & guitar amp outputs
Power:  External 100V - 240V AC with 48V Phantom
Construction:  14 gauge steel chassis & outer shell
Finish: Durable powder coat
Size: (L x W x D) 17.5" x 6" x 1.75" (44.5 x15.25 x 1.75cm)
Shipping Size: (L x W x D): 22" x 10" x 4.5" (55.9 x 25.4 x 11.4cm)
Shipping Weight:  
Conditions: For use in dry locations only between 5°C and 40°C
Warranty:  Radial 3-year, transferable
Specifications are subject to change without notice.

Equipment available to buy from this site is for professional use only. Please note in certain countries some products listed may not be available from A.C. Entertainment Technologies Ltd.

E&OE. Information is subject to change without notice. The rights and ownership of all trademarks are recognised.


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