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Providing versatile channel switching for a wide variety of live applications, the SW4 - 4-Channel Audio Switcher from Radial Engineering features 4 channels, each with 2 XLR inputs that can be stereo linked. Aside from the XLR inputs, each channel can also be linked, supporting tri- and quad-channel switching. Each channel is also equipped with a 3-position pre-fader listen switch that allows you to monitor source A, source B, or the stereo bus via headphones, which can be summed to mono for use with wireless guitar systems.
Channel 1 also features a mix function for summing both inputs together for simultaneous use. The unit has a master bus output, which is fed by all channels. Each channel has its own transformer-isolated output that is capable of handling over 20 dB at all frequencies.
Switching Between Wireless Systems
The SW4 can be used for switching between two or more wireless systems. Use it for backup or to enhance the show without taking up more audio channels. Can also be used on wireless guitars
Switching Between Stereo Sources
Use the SW4 as a safety backup to switch between two digital playback systems. Connect the left channels to input-1 and the right channels to input-2. Link them together for stereo switching
Toggle Between 2 Consoles
With 4 channels, you can instantly switch left, right, front down fill and subs with a push button. The SW4 gives you +20dB of signal handling to handle high output systems
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
In the Box
Radial Engineering SW4 - 4-Channel Audio Switcher
Limited 3-Year Warranty
Table of Contents
Audio Circuit Type
Passive transformer coupled with relay switching
Number of Channels
4x AB select
10 Hz to 40 kHz
Total Harmonic Distortion
<3° at all frequencies
Load impedance in parallel with 10 k ohm
+26 dBu channel to channel +17 dBu channel to bus
Channel to Channel: -0.26 dB with 10 k ohm load -2.3 dB with 600 ohm load
Channel to Bus Gain:
+8 dB with 10 k ohm load
Channel Output Impedance: 160 ohms Bus Output Impedance: 500 ohms
Eclipse ET-LD2 line output
Input Pad: Variable trim control
AB select on each channel
A & B per channel, master bus
Master bus out with headphones
AES standard pin-1 ground, pin-2 (+), pin-3 (-)
XLR male 1/4" (6.3 mm) guitar
Stereo or mono assignable
On all channels & guitar amp outputs
External 100 V - 240V AC with 48 V phantom
14 gauge steel chassis & outer shell
For use in dry locations only between 41 to 104°F (5 and 40°C)