The GR05 from Allen & Heath is a rack-mountable audio zone mixer designed for installed applications. It features two XLR microphone inputs and three stereo RCA line inputs as well as four XLR male outputs. Each of the inputs can be routed to any combination of outputs directly or via VCA control.
Internal or external ducking is also available, including muting. Both ducking depth and release time are assignable. If desired, a second GR05 can be connected and slaved, doubling the amount of I/Os. Level controls for all I/Os can be set for knob or screwdriver control, or the provided hole plugs may be fitted to lock out control.
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- 1U rack space zone mixer
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- Any of the five inputs can be routed to any combination of the four zone outputs
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- Remote control is available via a 25-pin D connector
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- Ducking, including muting, is available with assignable depth and release time
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- A second unit can be "slaved" to increase the number of I/Os
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- Level controls can be set for knob or screwdriver adjustment, or can be locked out using the included hold plugs
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- DC input for backup power
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- LED status indicators for power, signal, ducking, and mute
More Info
- 2 mic inputs
- 3 stereo inputs
- 4 XLR outputs
- Routing Matrix
- Remote Control
- Ducking
- Expandable
- Lock out system
- Internal power supply
2 Microphone Inputs
The GR05 is furnished with 2 balanced mic inputs on XLR, both of which have rear panel gain controls.
Removal of the top panel allows access to internal jumper links, providing a 30dB attenuator pad, +15V
phantom power and a high pass filter at 200Hz. Internal trimmers also provide 2-band EQ, hi-mid
frequency with sweep and LF shelving. The front panel has 3-colour LED meters, and level controls
for all routed outputs.
Stereo Inputs
3 RCA sockets are provided for stereo inputs, and internal jumper links allow access to -10dBV to
+4dBu level matching. 3-colour LED meters and level controls are also provided for the stereo inputs
on the front panel.
XLR Outputs
4 XLR connectors are provided for the outputs, which are internally configured by the jumper links
for -10dBV to +4dBu. The outputs can be grouped and front panel level controls can be disabled using
the internal. Internal trimmers also provide shelving EQ for HF and LF.
Other configurable functions include VCA control and outputs which can be assigned to front panel
controls or alternatively, remote control operation. Zone muting is possible via a front panel switch
and LED indicator.
Routing Matrix
All inputs can be routed to any combination of outputs direct, or via VCA control, so that the direct
path is not affected by output level controls and ducking. Matrix assigment is achieved using
internal jumper links.
Remote Control
VCA path remote control can be configured by the installer on internal jumpers. The expander option (using another GR05 acting as slave to the main unit and connected by a 25-pin D connector) includes a remote DC input for each of the 4 outputs.
Ducking
The GR05 allows ducking and muting of channels, and is configured either internally on jumpers or externally via an opto-isolated input for external trigger. A status LED on the front panel is provided.
Expander / Remote
Additional mic & line inputs can be provided via another 'slave' GR05 using the 25-pin D-type female connector.
Lock Out System
Input controls are always active; output levels controls may be disabled. All level controls may
be set in 3 ways: 1) Knob fitted for operator control 2) knob removed for screwdriver preset 3) hole
plugs (provided) fitted to lock out control.
PSU
Internal mains voltage PSU. DC backup input is provided. Status indicator