Yamaha EMX212S - Manual (Page 21)

Controls and Connectors
EMX512SC/EMX312SC/EMX212S 21
6 COMP knob (EMX512SC and EMX312SC only)
This knob adjusts the level of compression applied to the
channel. As the knob is turned to the right, the mixer
automatically raises the compression ratio while adjust-
ing the output gain accordingly. The result is a narrower,
more even dynamic range, as louder signals are softened
while the overall level is boosted. Avoid setting the knob
too high, however, as excess compression may lead to
howling.
7 LINE/MIC switch (Channels 1 to 4)
Set this switch to match the type of input signal you are
supplying—either a mic-level (low level) signal or a
line-level (high level) signal. Set the switch to LINE
(
) if you are connecting a line-level source, such as a
keyboard or audio device. Set it to MIC ( ) if you are
connecting up a microphone or other mic-level source.
To avoid damage to speakers, be sure to turn off the
power to the EMX itself and to any other power ampli-
fiers and power speakers before setting this switch to
LINE or MIC. We also recommend that you turn all
output controls (LEVEL knobs, MASTER knobs, etc.)
to minimum settings before operating the switch, to
avoid risk of loud noises that could cause hearing loss
or device damage.
8 INPUT A and INPUT B jacks (Channels 1 to 4)
You can connect an input source to either jack. Be sure
to set the LINE/MIC switch 7 to match the type of
device you are connecting.
INPUT A: TRS phone-type balanced line input (T:
hot, R: cold, S: ground). Accepts both bal-
anced and unbalanced line input.
INPUT B : XLR balanced mic input (1: ground, 2:
hot, 3: cold). If you are connecting a con-
denser microphone, be sure to turn the
PHANTOM switch P to its ON position.
• You cannot use both jacks at the same time.
• The signal into an INPUT jack is sent in equal lev-
els to the MAIN L and MAIN R buses.
9 LINE and MIC jacks (Channels 5/6 to 11/12)
These jacks accept stereo inputs. Use these to connect up
stereo output devices, such as stereo synthesizers and
CD players.
LINE jacks: Unbalanced stereo inputs. On channel
pairs 5/6 and 7/8 these are phone jacks; on
channel pairs 9/10 and 11/12 they are
RCA pin jacks.
MIC jack: XLR balanced stereo mic-level input jack.
If you are connecting a condenser micro-
phone, be sure to turn the PHANTOM
switch P to its ON position.
• If you wish, you may use the channel pair’s LINE
and MIC jacks together at the same time. But note
that the levels cannot be adjusted independently.
• Signals into LINE L and LINE R jacks are sent
independently to the corresponding MAIN L and R
buses.
• The signal into a MIC jack is sent in equal levels to
the MAIN L and MAIN R buses.
R: Cold (–)
S: Ground T: Hot (+)
Cold (–)
Ground Hot (+)
NOTE
NOTE