Cloud CXM User's Guide download pdf (Page 14)

CXM Technical

MANUAL

required, with a 6dB loss in gain (see 6.02 Unbalanced Mode). The CXM M2 is designed

to interface with equipment requiring OdBu (775mV) signal level and has both gain and

headroom margins to successfully match a wide range of ancillary equipment.

4.08 Output 2

The output 2 section is primarily intended to provide an extra output zone, as such it is

very similar to the main output. Level control of the mic and music signals is achieved by

means of two independent rotary controls. The main output faders have no control over

the levels on output 2. As with the main output, separate left and right balanced outputs

are provided, using 3 pin XLR type connectors which can be used in the unbalanced

mode if required, with a 6dB loss in gain (see 6.02 Unbalanced mode). Output 2 can be

configured to provide a mono output by means of a latching push switch which is

accessible through a 3mm diameter hole in the rear panel, adjacent to the Output 2

XLRs.

4.09 AVO (Auto Voice Over)

Comprehensive auto voice over is provided and features separate controls for

Attenuation, Release and Sensitivity. The On/Off switch has LED indication and a further

LED illuminates when the operation threshold has been reached. The auto voice over

detects any microphone signal to effect gain reduction on music signals.

4.10 Master Auxiliary Sends

These Master controls adjust the overall output signal derived from the channel modules.

With the control in the maximum position a maximum output of 0dBu (775mV) is

available. The balanced stereo output is by way of 1/4" 3 pole jack sockets with a facility

for a mono signal by using the left output socket only. For unbalanced operation a 2 pole

jack plug should be used.

4.11 Auxiliary Return

This stereo input facility is primarily intended to be used for Auxiliary return purposes. The

2 x 1/4" 3 pole jack sockets are used for the balanced inputs and have a sensitivity of -

7dBu (350mV) at 20kΩ. The signals are routed to the master music summing amplifier

and are subject to attenuation through the AVO circuit. If more comprehensive control of

the return signal is required, the use of a channel module is customary. There is also no

reason why the Aux return cannot be used as an extra basic input if required. Unbalanced

signals can be connected by simply using a 2 pole jack plug.

4.12 PFL / Headphone Amplifier

All PFL selections are routed to the stereo headphone amplifier and PFL VU display. The

stereo headphone amplifier is extremely powerful, it can deliver over 1 watt per channel

into the optimum load of 32 ohms. If high listening levels are a pre-requisite, we

recommend the use of headphones with an impedance in the range 8 to 60 ohms.

Performance into 600Ω 'phones is more than adequate and a 3 pole 3" jack socket is

provided on both the front and rear panels.

The installer must be aware of health and safety requirements of IEC TC84 regarding

sound pressure level when using headphones.

The use of a 2 pole jack plug should be avoided. The input signal follows the selected

PFL channel.

4.13 Split Cue

It is sometimes required, usually when mixing in sync', to monitor a pre-fade signal with

that of the output signal. This is accomplished in the 'split' mode by routing the 2 signals

to each half of the stereo headphone amp and PFL display. In this mode, a mono mix of

the PFL signal is routed to the left channel with a mono mix of the Main output signal

routed to the right channel. A rotary balance control is provided to compensate for

different signal levels: this control is operational in the split cue mode only.

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Cloud CXM User's Guide Page 14

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