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stereo or mono keyboard
The Duplex features ¼" InPUT and THRU jacks for
each channel allowing you to patch the instrument
signal through to a personal monitor system. The XLR
outputs connect to the Pa or recording system. You can
connect a stereo keyboard by simply doubling up the
connection using channel-2.
KEYS RIGHT
CHANNEL-1
KEYS RIGHT
Radial Engineering Ltd.
KEYS LEFT
MONITOR
THRU
PA SYSTEM
CHANNEL-1
KEYS LEFT
(MONO)
two stereo keyboards
You can retain full stereo operation with two keyboards
by connecting the keyboard's left and right outputs as
shown and engaging the Mono sUM switch on both
channels. Pushing the Mono sUM switch inward turns
the THRU jack into a second input. Connected this way,
the left signals from both devices are summed to one
Duplex channel and the right signals are summed to
the other. You can adjust the relative levels using the
keyboards volume controls.
KEYS RIGHT
CHANNEL-2
KEYS RIGHT
4
True to the Music
KEYS LEFT
PA SYSTEM
CHANNEL-1
KEYS LEFT
JDI • Duplex User Guide
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