M-2000 Module


Stereo & Mono Master Modules


[TALKBACK and OSCILLATOR block]

1. Talkback assign switches (1-2, 3-4, 5-6, 7-8, ST, MONO, AUX 1-2, AUX 3-4, AUX 5-6)
When depressed, these switches will send the talkback/oscillator signal to the appropriate buss(es). Any combination of these may be chosen, allowing flexibility when using the talkback facility.


2. OSCILLATOR ON switch and indicator
When depressed, and the TALKBACK switch is OFF, this switch sends a 1 kHz sine wave to the selected talkback buss(es). The level of this sine wave can be adjusted using the talkback LEVEL control. The sine wave is of high quality (<1% THD @ +4 dB) and can thus be used for signal tracing, and also to provide a reference test tone at the beginning of a recording.


3. Talkback INPUT connector
Talkback INPUT connector This unbalanced XLR-type connector is provided for use with a talkback microphone (impedance 50-600 W). A gooseneck or headset type of microphone is suggested for easy hands-off operation. The wiring of this connector is as follows:
Pin Signal
1 Ground
2 Signal
3 Ground


4. Talkback LEVEL control
This control adjusts the level of the talkback/oscillator signal sent to the selected buss(es). Nominal send level of 0dB is at the "" mark.


5.Talkback ON switch and indicator
When this latching onooff switch is ON (depressed), signals from the talkback INPUT connector will be routed to the selected buss(es). This will override the oscillator, if it is turned on.


[MONITOR and METER section]

About monitoring
The monitor section allows the operator to monitor any part of the mix, through headphones or the MIX OUT jacks. The CUE switches, found within each section, route the signals from that section to the cue busses - to the INPUT CUE buss for mono and stereo input channels and AUX RETURNs, or the MASTER PFL and AFL busses for everything else.
Cue signals from the stereo input channels, the AUX RETURN section and the STEREO MASTER section keep their stereo positioning in the monitor mix. Cue signals from all of the other CUE controls (single-input channels, MONO OUT, GROUP OUT etc.) are always centered in the monitor mix.
If no CUE switches are on, signals from one of the 2-track inputs are sent to the monitor mix. As soon as at least one CUE switch is on, the 2-track inputs are cut off, and the appropriate INPUT CUE and/or MASTER CUE LED will light.
When MASTER CUE is used, the position of the MASTER PFL switch determines whether the pre- or post-fader (PFL/AFL) signals will be sent to the monitor mix. When INPUT CUE is used, the signals are sent directly to the monitor mix, overriding the MASTER CUE (if it is being used). You cannot therefore listen to both INPUT and MASTER CUE at the same time. The total monitor mix can be summed to mono with the L+R switch.

6.METER 1-8 selector switches (GROUP, MATRIX, AUX)
Only one of these switches, which select which signals will appear on meters 1-8, can be depressed at a time.


7.METER L-R ST HOLD switch
Normally, whenever any CUE switch is operated, the L and R meters switch from indicating the main stereo output to indicating the monitor output. When the ST HOLD switch is depressed, however, the L and R meters will always indicate the main stereo output.

NOTE: The PEAK indicators light when the signal level reaches 3dB below clipping.


8.2-track input switches (2TR IN 1 and 2)
Only one of these two switches can be pressed at a time. They determine which of the two 2TR inputs will be connected to the monitor section.


9. INPUT CUE and MASTER CUE indicators
These indicators indicate the use of CUE switches on the console. If any of the input channel or AUX RETURN CUE switches are in use, the INPUT CUE indicator lights. If any of the other CUE switches are in use, the MASTER CUE indicator lights.


10.MASTER PFL switch
With this switch up, any MASTER CUEs will be sent to the monitor section as post-fader (AFL). When this switch is depressed, MASTER CUEs will all be pre-fader (PFL).


11.Monitor mono switch (L+R)
With this switch depressed, the L and R channels of the monitor mix are summed and sent to both channels.


12. MONITOR LEVEL control, and ON switch and indicator
These controls affect only the monitor signals sent to the MONITOR jacks, not to the headphones. Nominal output level of 0dB is at the "d" mark on the level control.


13. PHONES jack, and LEVEL control
This stereo headphone socket (standard 1/4 inch) is for use with headphones having a nominal impedance of 8 W. The nominal output power is 1 mW, and the maximum output power before clipping is 26 mW. The output from the CUE buss is output through this connector. There is no onooff switch for the phones output.
Nominal output level of 0dB is at the "" mark on the level control.


Lamp connectors (not pictured)
These BNC connectors (2 on the 16- and 24-channel models, 3 on the 32- and 40-channel models) allow you to connect any of a number of commercially available 12V lamps to help you when working in dimly lit environments.

[STEREO MASTER block]

14. TO MONO switch and balance control (BAL)
This combination of switch and balance control allows output from the STEREO buss to be fed directly into the MONO buss. With the TO MONO switch depressed, output from the stereo buss is sent to the mono buss with L/R feed balance determined by the BAL control. Note that this determines the balance of the origin of the signal, not the destination, as the mono bus is, of course, mono.
The feed is always post-fader, and is shipped as pre-ON switch. An internal jumper can be changed to make it post-ON switch.

15. ON/EDIT switch, and ON and CHECK indicators
ON/EDIT switch, and ON and CHECK indicators As for groups.


16. Master faders
This pair of linear faders controls the summed output of groups and individual input channels, regulating the level of the signal which is fed to the STEREO connectors. The configuration and calibration of these faders is the same as for input channel and group channel faders. Nominal level is 0dB.


17. Master CUE switch
As for group CUE switch.


[MONO block]

As you can see, the MONO block is essentially another group, apart from its association with the STEREO MASTER section via the TO MONO control.

18. ON/EDIT switch, and ON and CHECK indicators
As for groups.


19. MONO fader
As for groups.


20. MONO CUE switch
As for groups.