Radial Engineering Relay XO Balanced 1x2 Signal Router, May Be Remotely Controlled

The Radial Engineering Relay Xo is a 1-in, 2-out balanced audio switcher designed to route the output of a microphone to two different audio inputs. This, for instance, enables a vocalist to switch his mic between the main PA system and the monitors so that they can discreetly communicate with other band members or the technical staff. This is of particular importance for artists that employ in-ear monitors. You can also use the Relay Xo to send the output of a microphone to two channels on the PA. The first channel could be set 'dry' to speak to the audience between sets, while the second channel could be set 'wet' with reverb and echo to enhance the voice. This enables the vocalist to control effects and deliver a more professional performance.

The Relay Xo features a balanced XLR input and two balanced XLR outputs. The audio signal path is completely passive 'pure wire'. There are no transformers or electronic buffers inside that could introduce distortion or color the tone. Instead, the Relay Xo employs military-grade gold-contact sealed relays to do the switching. This makes the Relay Xo equally suitable with mic and line level signals.

Switching may be done using the side-access push-button switch or by remote control via the XLR and ¼" input jacks using either the Radial JR1-L latching or JR1-M momentary footswitch (sold separately). An optional remote link enables multiple Relay Xo's to be used in tandem.

Features

• Switch vocal microphone from PA to intercom
• Allows artist to speak with musicians and techs
• Remote control using footswitch
• Route any balanced signal to two destinations

Specifications

• Audio Circuit Type: Remotely controlled mechanical relay
• Frequency Response: 10 Hz to 100 kHz
• Dynamic Range: >140 dB
• Gain: 0 dB
• Total Harmonic Distortion: < 0.0005%
• Intermodulation Distortion: 0.001%
• Input Connector: XLR female
  • Input Impedance: Source dependent
  • Common Mode Rejection: -106dB
  • Maximum input: +26dBu
• Output Connectors: 2 x XLR male
  • Output Impedance: Source dependent
• Extra Connector: XLR/TRS combo jack and 1/4" loop-through remote connectors
• Contact Closure Function: With 1/4" TRS jack, short tip and ground to switch with XLR, short pin-1 ground and pin-2 hot to switch
• Construction: 14-gauge steel with internal I-beam
• Size (H x W x D): 1.8" x 3.3" x 5" (45.5 x 84 x 127mm)
• Weight: 1.4 lbs (0.6 kg)
• Power: 15VDC, 30mA, center-pin (+)
• Conditions: For use in dry locations only between 5°C and 40°C