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CXM User manual 9

3.01 Main Output Section

Separate faders are provided for microphone level and music level, making individual

master level adjustment possible.

The microphone fader should be used at approximately 75% of its travel; this will allow

the operator to increase the output significantly if required. A setting below 50% of the

fader travel must be avoided and could result in premature distortion.

The music fader is simply used to control the level of the music output signal, however,

care must be taken to set up the stereo input module gain as detailed in 1.02.

The Main output signal can be monitored via the PFL display and headphone amplifier by

pressing the "PFL output" button on the M1 Master Module.

3.02 Output 2

The use of this output is very much dependent upon the installation and the venue.

Possible uses include providing a signal for a peripheral area, a second dance floor or to

provide a signal for a DJ monitor system. As with the main output the microphone and

music levels are controlled independently, though by rotary controls rather than faders.

3.03 Crossfade, Chopfade and X-fade

The crossfade fader can be used to smoothly fade between music signals which have

been assigned to the A and B channels by the input channel assign switching (see 1.04).

A detent is provided in the centre position when both A and B channels are operative.

A chopfade facility is also provided for fast switching between crossfade channels. The

central momentary action switch turns the effect on and off. When switched on, the centre

green LED will illuminate, together with one of the red A or B LEDs at random. Pressing

the respective A or B switch will simulate swift action of the crossfade control. For a

positive condition upon switch on, the A or B switch should be depressed at the time of

switching on. Holding both A and B switches will result in both channels operating,

simulating the centre fader position.

The X-fade switches allow the operator to filter out parts of the signals before they enter

the crossfade and chopfade facilities. Both the A and B channels have their own,

separate bass, mid and high switches. When depressed the adjacent LED illuminates and

the respective tone range is filtered from the signal. Used in conjunction with the

crossfade this allows two signals to be mixed without any unwanted interaction.

3.04 Headphone Amplifier

The headphone amplifier operates in conjunction with the PFL select circuitry, any

channel can be routed to the headphone amplifier and PFL display by simply pressing the

respective PFL switch. The volume control adjusts the signal level.

The 'split' cue mode can be selected with the switch marked 'split', the adjacent yellow

LED will illuminate when selected. In this mode, the stereo headphone and display signal

is split, with a mono output signal routed to one headphone channel, and the selected

PFL channel routed to the other headphone channel. The balance control can be used to

compensate for different levels and only operates in the "Split Cue" mode.

Headphones with a rated impedance in the range 8 to 600 Ohms can be used, but

optimum performance is obtained using headphones in the 32 to 60 Ohm range. The

lightweight 'walkman' style headphones are normally rated around 50 Ohm.

A headphone socket is provided on the front panel with a second socket on the rear

panel. Do not use headphones with 2 pole (mono) jack plugs.

3.05 AVO - Auto Voice Over

The auto voice over uses any microphone signal to trigger a circuit which reduces the

level of the music signals. A switch is provided to turn on the effect, with a green LED

adjacent; once switched on, the sensitivity control can be turned clockwise until the yellow

'trig' LED illuminates when the microphone is used. The circuit will now operate and the

'attenuation' control sets the music level and the release control adjusts the time taken for

the music to return to its former level.

30-08-02 V4.0

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