Outputs; Balanced Outputs; Output Limiters - PSC M3 Operation Manual

Portable audio mixer
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always turn down the channel fader before removing the remote control!
High audio levels may occur if the channel fader is in the maximum or near
maximum setting when the boom pole remote control is unplugged. You
should note that the boom pole remote allows an approximate control range of 30
dB. This allows you complete working control over audio levels from the boom
pole.

OUTPUTS:

A.

BALANCED OUTPUTS

The M3 Mixer contains very high quality custom-made dual isolated output audio
transformers.
These transformers have been designed to provide wide
bandwidth, low distortion and real-world ease of use while feeding two Betacams
at the same time. One set of output windings feeds the standard XLR outputs
and the "Camera A" multi-pin connector. The second set of windings feeds the
"Camera B" multi-pin. Transformers have been chosen over a transformerless
design because of their inherent ability to interface with virtually any other device,
especially RF based products. This is very important in this day and age in
consideration of the frequent use of multiple RF receivers and transmitters.
These outputs are available via the right hand panel mounted male XLR
connectors. These outputs are switchable between line or microphone levels. At
the line level setting, the mixer outputs deliver a nominal 0dBv signal into 10K
Ohm loads. When set to microphone level, the outputs supply –50dBv signal
levels. Please note that 10K Ohm loads are typical of the loads imposed on the
mixer by most Betacams, and other recording devices. Additionally, the M3
Mixer's outputs are capable of driving 600 Ohm loads.
B.
MULTI-PIN (BETACAM) CONNECTOR
The M3 Mixer is equipped with two multi-pin in/out connectors designed primarily
to interface with Betacams. These connectors provide the left and right balanced
outputs as normally found on the XLR output connectors as well as left and right
tape returns used for confidence monitoring.
provide a convenient means of interfacing to Betacams with only one connection.
In addition, this connection is located on the right hand side (outputs side) of the
mixer. By locating the connector on this side of the mixer, your Betasnake
cables can be conveniently routed from one side of the mixer providing a clean
and compact setup for use on the run.
C.

OUTPUT LIMITERS.

The limit threshold (activation level) is factory set at +3 on the meter. The limiters
compress the signal at approximately 2.7 to 1 ratio. This is to say an increase of
2.7dB in input signal will result in only a 1dB increase in output signal. Output
channel limiting is displayed on the LCD meter.
These multi-pin connections
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