GL3 was the first mixer to offer Allen & Heath’s Dual Functionality concept – the ability to configure the console for front-of-house, monitoring or combined roles. It is a 4 group mixer featuring 4 band EQ with swept mids and 6 aux sends with pre/post switching.



GL3 main image


  • Dual functionality. GRP/Aux mode switches reverse aux master section with the group + LR faders, giving up to 6 monitor sends with inserts on 100mm faders
  • Formats: 16 and 24 channels. An 8 channel expander was produced, but this item is no longer available
  • 4 audio groups. Assignable from paired routing buttons and pan from channel. Groups have XLR outputs and inserts in GRP mode
  • 6 auxiliary sends. Switchable pre/post fade in blocks: 1-4, 5-6
  • 4 band EQ with separate controls for sweep and cut / boost on mid bands
  • 4 stereo returns on TRS line inputs
  • 10 segment bargraph metering on L&R and groups. Signal present and peak leds on channels
  • Lamp socket (BNC)
  • PSU. External linear power supply (MPS9G)



Allen & Heath + macOS Mojave

In anticipation of the launch of Appleā€™s latest update to macOS, Mojave, please note the following:

The correct operation of the full, public release of this platform is not yet verified by our development and test departments.
As a result, support for macOS Mojave is not currently offered for this product.

Full software testing and verification will commence following the official launch by Apple. As our test programmes are completed we will update this notice.