ALLEN & HEATH ML4000, Service Manual

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6 ML4000 Service Manual
ML4000
Key Features
The Allen & Heath ML4000 is a large format VCA equipped dual function live sound console
providing many of the features of its larger brother the ML5000 . It can be quickly configured for
front-of-house (FOH) or stage monitor mixing. As one console suitable for both applications it is
equally well suited to installation, rental and touring. It offers an IO capability and feature set that
satisfies the latest trends in live sound engineering, in particular the growing number of inputs and
outputs for multi-speaker house and monitor systems, demands of stereo in-ear monitoring, 3
speaker LCR imaging, advanced grouping and automation. The design ensures on-the-road
durability, a clear layout for easy walk up and go operation, and no-compromise audio
performance.
Inputs and Outputs
3 Standard frame sizes: 32+2, 40+2, 48+2 (mono + dual stereo channels)
32, 40, 48 mono mic/line inputs with inserts and direct outputs
2 dual stereo line inputs
24 input sidecar to expand to a maximum 96 inputs
Main Left, Right and Centre outputs with inserts, Centre configurable as the engineers monitor
8 Groups, 12 Auxes: Group/Aux 1-8 and Aux 9-12 with faders and inserts, Aux 1-8 with rotaries
11x4 Matrix
2-Track monitor input and recording send
Stereo headphones and local monitors
Talkback mic input
ClearCom compatible intercom interface
Groups and Automation
8 VCA groups with mutes and PAFL monitoring
8 audio groups with LCRplus™ sub grouping
8 mute groups
MIDI accessible snapshot memories
MIDI mute on/off, snapshot recall and dump in/out control
Channels can be made safe from the automation
Processing and Control
4-Band full sweep mono EQ with switched Q mids, 4-band fixed frequency stereo EQ
Sweepable high pass filter
LCRplus™ 3 speaker imaging system
Protected mode switching to configure the console for FOH or monitor application
Intelligent PAFL system with all-clear, PFL/in-place AFL, priority, auto-cancel/add mode…
Assignable talkback and intercom
1kHz tone and pink noise generator for system line-up and testing
Full console monitoring and extensive metering of inputs, mix busses and outputs