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MX12/6, 20/6 — Owner’s Manual
6 Front & Rear Panels
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q INPUT Jacks (MX12/6:CH1-8, MX20/6:CH1-16)
• MIC Balanced XLR type microphone input jacks (1:Ground, 2:Hot, 3:Cold).
These input jacks are compatible with 50-600Ω microphones.
• LINE Balanced TRS phone type line input jacks (T:Hot, R:Cold, S:Ground).
These input jacks are compatible with 600Ω line level devices.
Unbalanced phone plugs can be connected but noise may enter the signal if the cables are
too long or if the location is susceptible to electromagnetic interference.
Connector Section
NOTE: It is not possible to simultaneously use both the MIC INPUT jack and the LINE INPUT
jack on any individual channel. Please use only one or the other jack.
w INPUT Jacks (MX12/6:CH9-12, MX20/6:CH17-20)
Unbalanced phone type and RCA pin type stereo line input jacks.
These inputs are compatible with 600Ω line level devices.
NOTE: It is not possible to simultaneously use both the phone type and RCA pin type jacks for an
individual input channel. Please use only one or the other jack.
e ST OUT (L, R) Jacks
Balanced XLR type output jacks with a nominal output/impedance of +4dB/600Ω.
These jacks deliver stereo output of the mixed signal and are connected to a power amplifier, etc. that
drives the main speakers.
The outputs can also be used for recording with the level of the signal controlled by the ST Master
Fader.
r MONO OUT Jack
Balanced XLR type output jack with a nominal output/impedance of +4dB/600Ω.
This signal is the monaural mix of the STEREO bus’s stereo signal. Its level is controlled with the
MONO control.
t C-R/PHONES Jack
Stereo phone type output jack for connecting a set of headphones (nominal output/impedance of
3mW/40Ω).
It can also be used as a stereo phone type output jack for connecting a monitor system (nominal
output/impedance of +4dB/10kΩ).
The source that is monitored with this jack is selected with the C-R/PHONES Output and Meter Select
Switch (Master Control Section).
NOTE: When this jack is connected to a monitor system, an insertion cable (optional YAMAHA
insertion cable YIC025/050/070, etc.) may be used. (Tip:L, Ring:R, Sleeve:Ground)