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CM-CU21 Commentator Unit User Handbook
1
INTR
ODUC
TION
CM-CU21 COMMENTATOR UNIT
1
1 CM-CU21 Commentator Unit
Introduction
Fig 1-1: CM-CU21 Commentator Unit
The CM-CU21 Commentator Unit is a high quality, portable broadcast mixer and 4-wire
talkback unit. Its sturdy construction and flexibility of features make it suitable for use in a
wide variety of environments.
It provides two fully featured commentator positions and a third guest position that can
alternatively be used as a line-level input, allowing program idents/effects to be mixed
with the commentator inputs. Each position has an individual output, with two additional
outputs providing a mix of all active commentary channels. A limit indicator on the main
panel shows when the adjustable limiter on the mix outputs is active, and a bright 21
segment LED PPM meter, which can be disabled, shows the main output level.
Two talkback output channels, with a built in limiter, are available to each of the two main
commentators. They have adjustable gain and can be linked to provide simultaneous
operation.
A wide input gain range and switchable phantom power on each commentary position
provides supports for a variety of microphone types, from high output phantom units to
low output ribbon microphones.
There are 4 transformer balanced return audio inputs which, along with the commentator
inputs, are routed to the headphone monitor controls. With these headphone controls, any
input can be level adjusted, and sent to either the left, right or both ears.