Control panel
M2500—Owner’s Manual 7
EEQ switch
This turns the equalizer on/off. When the switch is
pressed in ( ), the equalizer is on.
FAUX 1–AUX 14 controls
These adjust the level at which the signal of the stereo
input channel (the L/R input signals mixed to a mon-
aural signal) is sent to the AUX buses 1–14. Placing
the control at the “▲” position will produce nominal
level (0 dB). For AUX buses 1/2, the pre-fader signal
will be output. For AUX buses 3–14, the PRE switch
(7) can be used to switch the signal pre or post
fader.
GPRE switches
If these switches are turned on ( ), the pre-fader
signal will be sent to the corresponding AUX buses. If
these switches are turned off ( ), the post-fader sig-
nal will be sent. Switches are provided to indepen-
dently switch three groups of AUX buses: 3–6, 7–10,
and 11–14.
HBAL control
This adjusts the level balance of the signal that is sent
to the STEREO or GROUP buses.
● If the ST switch is on
The BAL control will adjust the L/R balance at which
the signal of the stereo input channel is sent to the
STEREO bus.
● If a 1-2/3-4/5-6/7-8 switch is on
The BAL control will adjust the balance of the stereo
input channel that is sent to the odd-numbered
channels (1/3/5/7) and even-numbered channels (2/
4/6/8) of the corresponding GROUP bus (1-2/3-4/5-
6/7-8). The L ch of the input signal will be sent to the
odd-numbered channel of the group bus, and the R
channel of the input signal will be sent to the even-
numbered channel of the group bus.
IChannel assign switches
These switches assign the signal that has passed
through the fader and BAL control to the desired
bus(es). Any or all of the channel assign switches can
be used simultaneously.
•1-2/3-4/5-6/7-8 switches
When these switches are on ( ), the signal of the
stereo input channel will be sent to the correspond-
ing GROUP bus (1-2/3-4/5-6/7-8).
•ST (stereo) switch
When this switch is on ( ), the signal of the stereo
input channel will be sent to the STEREO bus.
•MONO (monaural) switch
When this switch is on ( ), the L and R channels of
the input signal will be mixed to monaural, and sent
to the MONO/C bus. The signal that is sent to the
MONO/C bus is not affected by the BAL control.
JON/EDIT switch / ON, CHECK indicators
The function of this switch and these indicators will
change depending on the mode of the M2500.
● In normal mode
You can use the ON/EDIT switch to turn the stereo
input channel on/off. When the channel is switched
on/off, the ON indicator will be lit/dark to indicate
the status. Channels that are switched off will not
send any signals to the GROUP, STEREO. MONO/C,
or AUX buses, but you can still use the PFL switch
(M) to monitor the signal from the MONITOR OUT
jacks or the PHONES jack.
● In check mode
When a scene is selected, the on/off status memorized
in that scene will be indicated by the lit/dark status of
the CHECK indicator. In check mode, you can also
use the ON/EDIT switch to switch the CHECK indi-
cator between lit/dark. For details on check mode,
refer to page 32.
KPEAK/NOM/SIGNAL indicators
These three indicators allow you to check the pre-
fader signal level of the stereo input channel.
•PEAK indicator
This will light when the signal mixed to monaural
exceeds nominal level by 17 dB.
•NOM (nominal) indicator
This will light when the signal mixed to monaural
reaches nominal level (0 dB).
•SIGNAL indicator
This will light when the signal mixed to monaural
reaches a level 13 dB below nominal.
LChannel fader
This adjusts the output level of the stereo input chan-
nel signal. This fader affects the level of the signal that
is sent to the GROUP, STEREO, MONO/C, and AUX
(if the PRE switch is off) buses.
MPFL (pre-fader listen) switch
When this switch is on ( ), the pre-fader signal will
be sent to the MONITOR INPUT PFL bus, and can
be monitored from the MONITOR OUT and
PHONES jacks.