Allen & Heath GL2400-40

For 35 years, Allen & Heath has designed truly innovative mixers for the real world and has earned its enviable reputation for superior performance, functionality and build quality.

Engineered for modern engineering techniques, every detail in this mixer has been carefully thought out to provide the very best mixing experience. For example, the mono output can be configured as LR sum, wedge, or aux-fed sub or centre master. In Monitor mode, all six auxes are available on faders with mutes, inserts, meters and XLR drive. The new 7x4 matrix with ambient mic capability opens up a huge number of mixing applications, including stereo recording, zone feeds, delay fill speakers and stereo in-ear monitor mixes.

We have worked hard at the design of the audio circuitry in this mixer, and with its amazing headroom and new ultra-quiet mix head amp, we believe that this is our best performance yet!


Allen & Heath GL2400 Series Features :

• 4 Group, 6 Aux, LR mix
• Enhanced 7x4 matrix
• Multi-source stereo channels
• Aux-fed subs capability
• Available frame sizes : 16, 24, 32, 40 incl. 2 dual stereo channels

Dual Functionality:

As pioneers of dual functionality, we have ensured that every detail of the concept has been carefully implemented with no controls redundant in either mode. When mixing Front-of-House, the monitors can be set pre-insert as well as pre-EQ to prevent your house mix EQ and compression affecting the stage mix. Per channel aux switching means you can mix pre-fade with post-fade sends such as theatre radio mics and sound effects. As a monitor console, the aux masters get faders, inserts, mutes, meters and balanced XLR drive. You even get a fader controlled engineer' wedge feed. The Groups and LR mixes are still available to create yet more sends. In monitor mode the GL2400 can provide up to 10 mixes, for example 6 wedge and 2 stereo IEM.

Performance:

Our new mic preamp has an extended 74dB gain range with massive headroom able to deal with the widest range of signals right up to +34dBu. From our new low-noise mix amp through responsive 4 band EQ to the differential balanced +26dBu outputs, every stage has been carefully designed to ensure optimum gain structure and the best sonic performance possible.

Third Fader:

There are three master faders on the GL2400. Our configurable M fader lets you create an LR sum mono fill, an engineers monitor wedge feed, or a dedicated centre or sub-bass speaker mix from Aux 6 which means you can dial in exactly what you need from each channel. L, R and M each provide a dedicated meter, mute, AFL and balanced XLR output.

7x4 Matrix:

The matrix is a big feature for corporate AV work, specialized recording and broadcast feeds, and personal monitoring. Smart auto-switching of the external inputs lets you add a common mono, stereo or independent sources to the matrix. Cross patch from the stereo channel mic breakpoints to add room ambience to your recording and IEM feeds.

Dual Stereo Channels:

These two multi-function channels provide a mic and 2 stereo line inputs each. Use the channels as mic inputs while the 4 stereos are independently routed to LR, or combine stereo sources such as backing tracks and reverbs while the mics are patched elsewhere, or use conventional stereo channels while the second inputs provide additional returns and the mics patch into the matrix for ambience.
True versatility in a tiny space...


Allen & Heath GL2400 40 Channel Features:

• 40 Channel frame
• LR and M main outputs
• 4 Audio groups with pan control
• 6 Auxiliary sends with per-channel pre/post fader switching
• 2 stereo channels each with mic and dual stereo line inputs
• 7x4 Matrix
• Proper dual functionality for FOH and/or Monitor mixing
• M can be configured as LR sum, Wedge, or Aux-Fed Sub or C master
• Recording capable with channel direct outputs
• Matrix external inputs with level trims and common input capability
• Stereo channel line inputs can be independently routed to LR
• Stereo channel mic input breakpoints for cross patching into matrix
• Responsive 4 band, 2 sweep EQ
• 100Hz channel high pass filters
• Individual phantom power and Polarity switching
• Dedicated Channel, Master and stereo Monitor meters
• Internal jumper plugs for pre/post-EQ aux, direct out and other options
• Mutes, meters and AFL on all fader masters
• Assignable talkback
• 1kHz oscillator and pink noise generator
• 2-track monitoring and replay to LR
• Headphones and local monitor outputs
• Electronically balanced XLR outputs with +26dBu drive capability
• Preamp +34dBu maximum input capability for mic or line
• Ultra low noise mix head amp design
• Internal power supply with MPS12 backup supply input (16 to 32 models)
• External RPS11 power supply and socket for backup supply (40 model)
• 100mm dust protected faders
• Metal jacks, gold-plated XLRs, sealed pots and switches
• Individual circuit card assembly with nutted pots
• Solid copper bus bar grounding
• Sys-Link V2 console linking option
•  4-pin XLR lamp sockets

Allen & Heath GL2400-40 Specifications :

Total # Of Inputs
    40

Mic/Line Inputs
    40 Line: 1/4" Phone
    40 Mic: 3-pin XLR

Stereo Line Inputs
    4 Stereo: L/R 1/4" Phone

In-Line Inputs/Returns
    No

AUX Sends
    6 Aux Sends: 1/4" Phone

AUX Returns
    No

Inserts
    40 Line: TRS 1/4" Phone
    4 Group: TRS 1/4" Phone
    2 Stereo Out: TRS 1/4" Phone

BUS (Group) Outputs
    4 Group Outputs: Balanced 3-pin XLR

2 Trk Master I/O
    Main Outputs: Left / Right / Mono (sub) Balanced 3-pin XLR
    2Trk In: L/R 1/4" Phone 2Trk Out: L/R 1/4" Phone

ALT I/O
    Matrix -
    4 EXT In: 1/4" Phone 4 MTX: 1/4" Phone

Monitor Outputs
    Monitor Out: L/R 1/4" Phone

EQ Section
    Gain (each band): +/- 15dB
    Mono Channels- Low: Shelf 80Hz
    Low Mid: 35Hz - 1kHz Q=1.8 High Mid: 500Hz - 15kHz Q=1.8
    High: Shelf 12kHz Stereo Channels -
    Band Frequencies: 60Hz, 250Hz, 2.5kHz, 12kHz Q=1.8 Filter (mono inputs): Switch 100Hz

Solo/Mute
    Mute / PFL on all channels

Channel Level Control
    100mm faders

Trim/Gain Control
    Sealed Rotary Potentiometers

Phantom Power
    +48 Volt Phantom Power (all mono channels)

Metering
    12 Segment Stereo Peak LEDs

Frequency Response
    20Hz to 30kHz
    Mic to Main output (+40dB gain): +0/-0.5dB Line to Main output (0dB): +0/-0.5dB

Dynamic Range
    not specified by manufacturer

Signal-to-Noise Ratio
    (22Hz to 22kHz unweighted)
    Mic EIN with 150ohm source: -128dB Residual output noise main outputs: < -98dBu
    Main Mix noise (nothing routed): < -92dBu Main Mix noise (24 channels routed): < -86dBu (90dB S/N)

Total Harmonic Distortion (THD)
    THD + Noise (mic In +40dB gain): < 0.004%
    THD + Noise (line in 0dB gain): < 0.006%

Power Supply
    External RPS11 linear, IEC input (exclusive to 40 channel model)
    Input for second RPS11 as backup supply

Dimensions
    48.5" x 10" x 25" (123.3 x 25.4 x 63.5cm) (WxHxD)
    H = maximum meter bridge height

Weight
    70.5 lb (32 kg)