Yamaha M2500-24, M2500-32, M2500-40C, M2500-48C, M2500-56C Owner's Manual
M
MIXING CONSOLE
Owner’s Manual
Mode d’emploi
Bedienungsanleitung
FCC INFORMATION (U.S.A.)
1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets FCC
requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product.
2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST
be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA.
3. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class “B” digital devices. Compliance with
these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with
other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may
cause interference harmful to the operation of other electronic devices. Compliance with FCC regulations does not guarantee that interference will not occur in all
installations. If this product is found to be the source of interference, which can be determined by turning the unit “OFF” and “ON”, please try to eliminate the
problem by using one of the following measures: Relocate either this product or the device that is being affected by the interference. Utilize power outlets that are on
different branch (circuit breaker or fuse) circuits or install AC line filter/s. In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in
is 300 ohm ribbon lead, change the lead-in to coaxial type cable. If these corrective measures do not produce satisfactory results, please contact the local retailer
authorized to distribute this type of product. If you can not locate the appropriate retailer, please contact Yamaha Corporation of America, Electronic Service
Division, 6600 Orangethorpe Ave, Buena Park, CA 90620
The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries.
ADVARSEL!
Lithiumbatteri—Eksplosionsfare ved fejlagtig
håndtering. Udskiftning må kun ske med batteri
af samme fabrikat og type. Levér det brugte
batteri tilbage til leverandoren.
VARNING
Explosionsfara vid felaktigt batteribyte. Använd
samma batterityp eller en ekvivalent typ som
rekommenderas av apparattillverkaren.
Kassera använt batteri enligt fabrikantens
instruktion.
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti
asennettu. Vaihda paristo ainoastaan
laitevalmistajan suosittelemaan tyyppiin. Hävitä
käytetty paristo valmistajan ohjeiden
mukaisesti.
NEDERLAND THE NETHERLANDS
● Dit apparaat bevat een lithium batterij voor geheugen
back-up.
● Raadpleeg uw leverancier over de verwijdering van de
batterij op het moment dat u het apparaat ann het einde
van de levensduur afdankt of de volgende Yamaha Service
Afdeiing:
Yamaha Music Nederland Service Afdeiing
Kanaalweg 18-G, 3526 KL UTRECHT
Tel. 030-2828425
● Gooi de batterij niet weg, maar lever hem in als KCA.
● This apparatus contains a lithium battery for memory
back-up.
● For the removal of the battery at the moment of the
disposal at the end of the service life please consult your
retailer or Yamaha Service Center as follows:
Yamaha Music Nederland Service Center
Address: Kanaalweg 18-G, 3526 KL
UTRECHT
Tel: 030-2828425
● Do not throw away the battery. Instead, hand it in as small
chemical waste.
M2500—Owner’s Manual
iii
Important Information
Read the Following Before Operating M2500
Warnings
• Do not allow water to enter this unit or allow the
unit to become wet. Fire or electrical shock may
result.
• Connect this unit’s power cord only to the
power supply unit, and connect the power supply unit to an AC outlet of the type stated in this
Owner’s Manual or as marked on the power
supply unit. Failure to do so is a fire and electrical shock hazard.
• Do not scratch, bend, twist, pull, or heat the
power cord. A damaged power cord is a fire and
electrical shock hazard.
• Do not place heavy objects, including this unit,
on top of the power cord. A damaged power
cord is a fire and electrical shock hazard. In particular, be careful not to place heavy objects on a
power cord covered by a carpet.
• If you notice any abnormality, such as smoke,
odor, or noise, or if a foreign object or liquid
gets inside the unit, turn it off immediately.
Remove the power cord from the AC outlet.
Consult your dealer for repair. Using the unit in
this condition is a fire and electrical shock hazard.
• Should this power supply be dropped or the
cabinet be damaged, turn the power switch off,
remove the power plug from the AC outlet, and
contact your dealer. If you continue using the
unit without heeding this instruction, fire or
electrical shock may result.
• If the power cord is damaged (i.e., cut or a bare
wire is exposed), ask your dealer for a replacement. Using the unit with a damaged power
cord is a fire and electrical shock hazard.
• Do not modify the unit. Doing so is a fire and
electrical shock hazard.
Cautions
• This unit is heavy. Use two or more people to
carry it.
• Hold the power cord plug when disconnecting it
from an AC outlet. Never pull the cord. A damaged power cord is a potential fire and electrical
shock hazard.
• Do not touch the power plug with wet hands.
Doing so is a potential electrical shock hazard.
• Use only the included power supply for this unit.
Using other types may be a fire hazard.
Operating Notes
• The digital circuits of this unit may induce a
slight noise into nearby radios and TVs. If noise
occurs, relocate the affected equipment.
• Using a mobile telephone near this unit may
induce noise. If noise occurs, use the telephone
away from the unit.
• XLR-type connectors are wired as follows:
pin 1: ground, pin 2: hot (+), and pin 3: cold (–).
• Insert TRS phone jacks are wired as follows:
sleeve: ground, tip: send, and ring: return.
• The performance of components with moving
contacts, such switches, rotary controls, faders,
and connectors, deteriorates over time. The rate
of deterioration depends on the operating environment and is unavoidable. Consult your
dealer about replacing defective components.
Keep This Manual For Future Reference.
iv
M2500—Owner’s Manual
M2500—Owner’s Manual
1
Introduction
Thank you for purchasing the Yamaha M2500 mixing console. The M2500 is a highly costeffective mixing console that features functionality such as scene memory, PAN control
that is switchable between LR/LCR, and GROUP/AUX FADER FLIP switches. In order to
take full advantage of the M2500’s functionality and ensure trouble-free use, please read
this manual carefully.
Note :
• This manual assumes that you have an understanding of basic mixing console operation and terminology.
• The M2500 series includes five models: M2500-24, M2500-32, M2500-40C, M250048C, and M2500-56C. This manual bases its explanation on the M2500-24. Differences
in the specifications of each models are given in curly brackets { }.
Contents
Features of the system............................. 2
Control panel..........................................3
Input channel section ......................................... 3
GROUP/AUX master section............................. 9
GROUP/AUX FLIP switch............................... 14
Stereo/monaural master section ......................16
Matrix section ...................................................18
Monitor section ................................................19
Talkback/oscillator section............................... 21
Meter select section........................................... 22
Control section .................................................22
Meter bridge...................................................... 24
Rear panel.............................................25
Monaural input channel input/output jacks... 25
Stereo input channel input/output jacks.........26
Master section input/output jacks ................... 27
The Scene Memory function .................30
What is scene memory? .................................... 30
Modes of the scene memory function .............30
Operation in Normal mode .............................31
Check mode operation .....................................32
Utility mode procedures................................... 34
Control change table ........................................ 36
Mute groups......................................................37
About the local control circuit......................... 38
Error messages...................................... 39
Specifications ........................................ 40
General specifications ...................................... 40
Input/output characteristics ............................ 41
Other................................................................. 42
Dimensions........................................... 43
MIDI data format .................................. 44
MIDI Implementation Chart.................. 45
2
M2500—Owner’s Manual
Features of the system
• The M2500-24 {32/40C/48C/56C} provides 24
{32/40/48/56} monaural input modules and
four stereo input modules. It also provides 14
AUX outputs, eight group outputs, stereo output, and monaural output, for a generous total
of 25 output buses. The M2500 is ideal for a
wide range of applications from use as a main
PA mixer to use in installed systems.
• Eight independent matrix outputs are provided.
The GRP/AUX, STEREO, and MONO/C channel output signals and the input signals from
dedicated inputs can be mixed freely, and output
from the eight MATRIX OUT jacks. This is convenient for foldback, or for creating individual
mixes for monitor speakers or amps.
• Monaural input channels and GRP/AUX output
channels allow you to select not only conventional LR (stereo) output or monaural output,
but also LCR (stereo+center) output. When LCR
output is selected, the level of the center output
signal is also controlled by the PAN control, for
accurate spatial positioning when a three-channel stereo+center playback system is used.
• Monaural input channels provide a 26 dB pad,
high pass filter switch, phase switch, four-band
EQ, and 100 mm full-stroke faders. +48 V phantom power that can be switched on/off individually for each channel is also provided.
• An INSERT I/O jack is provided on each monaural input channel as well as on the AUX 1–6,
GRP/AUX, STEREO, and MONO/C output
channels. This allows you to insert external
effect units as necessary.
• The GROUP/AUX FLIP switch allows the eight
100 mm fader output channels to be used either
for the GROUP or AUX buses. When used for
the AUX buses, all 14 AUX buses can be controlled by 100 mm faders, which is convenient
when using the M2500 as a stage monitor console.
• The Scene Memory function allows you to store
the on/off status of each mono/stereo input
channel and GRP/AUX 1–8, STEREO, and
MONO/C output channels as one of 128 scenes.
Scenes can be recalled at any time from the front
panel or via MIDI. In addition, control change
messages can be used to individually switch
these channels on/off from an external device.
• Eight DIRECT RECALL switches are provided
to allow scene memories 1–8 to be recalled at the
touch of a single button. This allows multiple
channels to be switched on/off quickly.
• By changing a setting, the DIRECT RECALL
switches can be used as mute group switches.
Mute group switch settings allow the DIRECT
RECALL switches to individually add/remove
eight sets of mute settings.
• PFL switches are provided on all input channels,
and AFL switches are provided on all master
outputs. In addition, a MASTER PFL switch
allows the master output monitor signal to be
switched between pre/post fader. You can rapidly check the input/output signal sources at a
variety of points.
• The talkback signal and the test tone oscillator
(PINK/10 kHz/1 kHz/100 Hz) can be sent to any
of the AUX 1-2, 2-6, 7-10, 11-14, STEREO, or
MONO/C buses.
M2500—Owner’s Manual
3
Control panel
Input channel section
Monaural input channels
The M2500-24 {32/40C/48C/56C} provides 24 {32/
40/48/56} input channels. The specifications of each
input channel are the same for all models of the
series.
A
+48 V
(phantom power) switch
This switches the +48 V phantom power supply on/
off for the corresponding channel. When the switch is
pressed in ( ), phantom power is on. At this time
the indicator above the switch will light.
B
GAIN
control
This adjusts the input sensitivity. This control has a
range of –16 dB to –60 dB when the 26 dB pad switch
(3) is off, and a range of +10 dB to –34 dB when the
pad is on.
C
26 dB
pad switch
This attenuates the input signal by 26 dB. When the
switch is pressed in ( ), the pad is on.
D
(phase) switch
This reverses the phase of the input signal. When the
switch is pressed in ( ), the phase is reversed.
E
(high pass filter) switch
This switches the high pass filter on/off. When the
switch is pressed in ( ), the high pass filter is on,
and the frequency range below 80 Hz will be attenuated by an 18 dB/oct curve.
F
EQ
controls
This is a four-band equalizer. The type, center frequency, and gain range of each band is shown below.
G
EQ
switch
This switches the equalizer on/off. When the switch is
pressed in ( ), the equalizer will be on.
H
AUX 1–AUX 14
controls
These adjust the level at which the signal of the monaural input channel is set to AUX buses 1 to 14. Nominal level (0 dB) is when the control is at the “▲”
position. The pre-fader signal will be sent to AUX
buses 1/2. For AUX buses 3 to 14, you can use the
PRE switch (9) to switch between pre/post fader.
+48V
GAIN
80
+10
26dB
–34
–16 –60
HI-MID
HI
–15 +15
–15 +15
400 8k
LO-MID
LO
EQ
AUX1 PRE
PRE
PRE
–15 +15
–15 +15
010
010
010
010
010
010
010
010
010
010
010
010
010
010
80 1.6k
AUX2
AUX3
AUX4
AUX5
AUX6
AUX7
AUX10
AUX11
AUX14
AUX13
AUX9
AUX8
PRE
AUX12
PAN
C
PAN
ST
LCR
ODD EVEN
MONO
LCR
ON/EDIT
PEAK
NOM
10
10
20
30
40
60
50
5
0
5
SIGNAL
CHECK
ON
1-2
3-4
5-6
7-8
PFL
010
AUX14
1
2
3
5
7
9
J
O
6
L
M
K
4
8
N
Note:
If you wish to use phantom power, make
sure that the rear panel PHANTOM MASTER
switch (page 29) is turned on. (The PHANTOM
MASTER indicator on the meter bridge will light.)
Band Type Center frequency Gain
HIGH Shelving 10 kHz
±15 dB
HIGH-MID Peaking 400 Hz to 8 kHz
LOW-MID Peaking 80 Hz to 1.6 kHz
LOW Shelving 100 Hz
80
Control panel
4
M2500—Owner’s Manual
I
PRE
switches
If these switches are turned on ( ), the post-EQ prefader signal will be sent to the corresponding AUX
buses. If these switches are turned off ( ), the postfader signal will be sent. Switches are provided to
independently switch three groups of AUX buses: 3–
6, 7–10, and 11–14.
J
PAN
control
This adjusts the pan or balance of the signal that is
sent from the monaural input channel to the STEREO, MONO/C, or GROUP buses. The function of
the PAN control will change as follows, depending on
the setting of the channel assign switch (K).
●
When the ST switch is on
PAN will adjust the pan of the signal that is sent from
the monaural input channel to the STEREO L/R bus.
●
When the LCR switch is on
PAN will adjust the pan of the signal that is sent from
the monaural input channel to the STEREO L/R bus
and MONO/C bus.
●
When a 1-2/3-4/5-6/7-8 switch is on
PAN will adjust the balance of the signal that is sent
from the monaural input channel to the odd-numbered (1/3/5/7) and even-numbered (2/4/6/8) channels of the corresponding GROUP bus (1-2/3-4/5-6/
7-8).
K
Channel assign switches
These switches assign the post-fader post-PAN signal
to the desired bus.
•
1-2/3-4/5-6/7-8
switches
When these switches are on ( ), the signal of the
monaural input channel will be sent to the corresponding GROUP bus (1-2/3-4/5-6/7-8).
•ST (stereo) switch
When this switch is on ( ), the post-PAN signal of
the monaural input channel will be sent to the STEREO bus.
•
MONO
(monaural) switch
When this switch is on ( ), the signal of the monaural input channel will be sent to the MONO/C bus.
•
LCR
switch
When this switch is on, the indicator above the switch
will light, and the post-PAN signal of the monaural
input channel will be sent to the STEREO bus and the
MONO/C bus.
Note:
• The LCR switch takes priority over the ST/MONO
switch. When the
LCR switch is on
, the post-PAN
signal of the monaural input channel will be sent to
the STEREO bus (L/R) and the MONO/C bus regardless of the on/off status of the ST/MONO switch.
When the LCR switch is on, the level of the signals
that are sent to the STEREO bus (L/R) and MONO/C
bus will change in response to movement of the PAN
control as shown in the following diagram.
• When the
LCR switch is off
, the ST/MONO switch
will function as a conventional channel assign
switch. If
ST is on
, the post-PAN signal of the
monaural input channel will be sent to the ST bus.
If the
MONO switch is on
, the signal of the monaural input channel will be sent directly to the
MONO/C bus. (The signal sent to the MONO/C
bus will not be affected by the PAN control.) If the
LCR switch is off and the ST/MONO switch is on,
movements of the PAN control will affect the signal levels sent to the STEREO bus (L/R) and
MONO/C bus as shown in the following diagram.
• The 1-2/3-4/5-6/7-8 switches can always be used,
regardless of the on/off status of the LCR switch.
When the
1-2/3-4/5-6/7-8 switches are on
, the
post-PAN signal of the monaural input channel
will be sent to the corresponding GROUP bus 1–8.
When the 1-2/3-4/5-6/7-8 switches are on, movements of the PAN control will affect the signal levels sent to GROUP buses 1–8 as shown in the
following diagram.
LCR switch= on
Signal sent to the MONO/C bus
Signal sent to STEREO bus L
Signal sent to STEREO bus R
CRL
PAN control
< Response curve 1 >
Signal level
CRL
LCR switch= off
ST switch= on
MONO switch= on
< Response curve 2 >
Signal sent to the MONO/C bus
Signal sent to STEREO bus L
Signal sent to STEREO bus R
PAN control
Signal level
C EVENODD
1-2/3-4/5-6/7-8 switches= on
Signal sent to GROUP buses 1/3/5/7
Signal sent to GROUP buses 2/4/6/8
< Response curve 3 >
PAN control
Signal level
Control panel
M2500—Owner’s Manual
5
L
ON/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 monaural 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 (O) to monitor the signal from the
MONITOR OUT jacks or the PHONES jack.
●
In check mode
When a scene (which contains the on/off state of the
ON/EDIT switches) 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 indicator between lit/dark. (The current on/
off setting will not be affected.) For details on check
mode, refer to page 32.
M
PEAK/NOM/SIGNAL
indicators
These three indicators allow you to check the prefader signal level of the monaural input channel.
•
PEAK
indicator
This will light when the signal exceeds nominal level
by 17 dB.
•
NOM
(nominal) indicator
This will light when the signal reaches nominal level
(0 dB).
•
SIGNAL
indicator
This will light when the signal reaches a level 13 dB
below nominal.
N
Channel fader
This adjusts the output level of the monaural input
channel 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.
O
PFL
(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.
MONITOR
ST
LR
MONO
MONO
RL
ST
PFL AFL
ON
ON
(PFL)
INPUTSTMASTER
LR
MONO
LR
MONO/C
STEREO
from CPU
AUX 11-14
Same as AUX 3-6
AUX 7-10
Same as AUX 3-6
MASTER
PHANTOM
1-56
1-48
1-40
1-32
1-24
INPUT
0dB
INSERT I/O
PFL
(–26dB)
(0dB)
ON
CHECK
AUXGROUP
1413121110
9
23456788765432
11
ON/EDIT
Control
SIGNAL
NOM
PEAK
MONO
ST
LCR
AUX6
AUX5
AUX4
AUX3
AUX2
PAN
PRE
AUX1
EQ
LO
HI
Ø
80
+48V
HI-MID
LO-MID
g
f
g
f
4 stage EQ
26dB
HPF
GAIN
PAD
1
6 J KM
23
N
7
9O8
5 4
L
Control panel
6
M2500—Owner’s Manual
Stereo input channels
The M2500 provides four stereo input channels,
allowing line-level stereo sources such as sub-mixers,
effect processors, and CD players to be input. Of the
stereo input channels 1–4, channel 1 provides both
XLR and RCA phono input jacks, and you can select
and use one of these. Channels 2–4 provide a pair of
TRS phone input jacks. For this reason, there are
slight differences between the controllers of channel 1
and channels 2–4. Our explanation here will be based
on stereo input channel 1, and any differences for stereo input channels 2–4 will be explained later.
A
GAIN A
control
This adjusts the input sensitivity of the signal that is
input from the XLR connectors of the ST CH 1
INPUT A jacks (page 26). Levels of +10 dB to –30 dB
are supported. If the A/B select switch (3) is in the B
( ) position, this control will have no effect.
B
GAIN B
control
This adjusts the input sensitivity of the signal that is
input from the RCA phono connectors of the ST CH
1 INPUT B jacks (page 26). Levels of +10 dB to
–20 dB are supported. If the A/B select switch (3) is
in the A ( ) position, this control will have no
effect.
C
A/B
switch
This selects the input jacks that will be used for stereo
input channel 1. When the switch is in the upward
position ( ), the ST CH 1 INPUT A jacks can be
used. When the switch is in the downward position
( ), the ST CH 1 INPUT B jacks can be used.
D
EQ controls
This is a two-band equalizer. The equalizer type, center frequency, and gain range of each band is shown
below.
010
AUX14
+10 –30
A
+10 –20
–15 +15
B
A
B
HI
–15 +15
LO
GAIN
EQ
AUX1 PRE
PRE
PRE
010
010
010
010
010
010
010
010
010
010
010
010
010
010
AUX2
AUX3
AUX4
AUX5
AUX6
AUX7
AUX10
AUX11
AUX14
AUX13
AUX9
AUX8
PRE
AUX12
BAL
LCR
ODD EVEN
ON/EDIT
PFL
10
10
20
30
40
60
50
5
0
5
BAL
ST
LR
ODD EVEN
MONO
1-2
3-4
5-6
7-8
PEAK
NOM
SIGNAL
CHECK
ON
1
2
3
5
6
L
8
M
4
J
K
9
7
Note: Since stereo input channels 2–4 have only
one set of inputs, only one GAIN control is provided. (Nor is there an A/B select switch.) This
control will adjust the input sensitivity of the signal that is input from the TRS phone connectors
for the ST CH 2–4 INPUT jacks (page 26). Levels
of +10 dB to –30 dB are supported.
Band Type
Center
frequency
Gain
HIGH
Shelving
10 kHz
±15 dB
LOW 100 Hz
+10 –30
GAIN
Control panel
M2500—Owner’s Manual 7
E EQ switch
This turns the equalizer on/off. When the switch is
pressed in ( ), the equalizer is on.
F AUX 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 monaural 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.
G PRE 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 signal will be sent. Switches are provided to independently switch three groups of AUX buses: 3–6, 7–10,
and 11–14.
H BAL 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 (1-2/3-4/56/7-8). 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 evennumbered channel of the group bus.
I Channel 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 corresponding 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.
J ON/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 indicator between lit/dark. For details on check mode,
refer to page 32.
K PEAK/NOM/SIGNAL indicators
These three indicators allow you to check the prefader 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.
L Channel fader
This adjusts the output level of the stereo input channel 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.
M PFL (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.
Control panel
8 M2500—Owner’s Manual
MONITOR
ST
LR
MONO
MONO
RL
ST
PFL AFL
ON
ON
(PFL)
Same as ST CH 1
ST CH 2-4
from CPU
INPUT
AUX 11-14
Same as AUX 3-6
AUX 7-10
Same as AUX 3-6
B
A
ST CH 2-4
INPUT
L/MONO
R
ST CH 1
INPUT B
INPUT A
R
L
R
L
ST
MASTER
LR
MONO
LR
MONO/C
STEREO
BAL
ON
CHECK
2 stage EQ
2 stage EQ
2 stage EQ
2 stage EQ
GAIN B GAIN A
AUX
1413121110
9
2345678
1
GROUP
8765432
1
EQ
HI
LO
GAIN
SIGNAL
PFL
LO
HI
EQ
AUX1
PRE
AUX2
AUX3
AUX4
AUX5
AUX6
ST
MONO
PEAK
NOM
Control
ON/EDIT
1 4 5 8 9K
2
L
7M6
3
J
Control panel
M2500—Owner’s Manual 9
GROUP/AUX master section
AUX 1–6 section
These are the output channels that control the signals
of AUX buses 1–6. The signals that have passed
through these output channels will be output individually from the AUX OUT 1–6 jacks (page 27). In
addition, they pass through the MONITOR MASTER
PFL/AFL buses and can be monitored from the
MONITOR OUT L/R and the PHONES jacks.
A ON switches
These turn AUX OUT 1–6 on/off. When a switch is
on ( ), the signal of the corresponding AUX bus
will be output to the AUX OUT jack.
B AUX 1–6 master faders
These adjust the output levels of AUX OUT 1–6.
C AFL (after fader listen) switches
These switches are used to monitor the signal of the
AUX OUT 1–6 section from the MONITOR OUT/
PHONES jacks. When an AFL switch is on (the
switch above the indicator will light), the pre/afterfader signals of the AUX 1–6 section will be sent to
the MONITOR MASTER PFL/AFL buses respectively, and can be monitored via the MONITOR
OUT/PHONES jacks. At this time, you can use the
MASTER PFL switch (page 19) in the monitor section to select whether you will monitor the pre- or
after-fader signal.
AUX1
AFL
ON
10
10
20
30
40
60
50
5
0
5
AUX2
AFL
ON
10
10
20
30
40
60
50
5
0
5
AUX3
AFL
ON
10
10
20
30
40
60
50
5
0
5
AUX4
AFL
ON
10
10
20
30
40
60
50
5
0
5
AUX5
AFL
ON
10
10
20
30
40
60
50
5
0
5
AUX6
AFL
ON
10
10
20
30
40
60
50
5
0
5
1
23
Note: If the PFL switch of even one input channel
is turned on, the signal of the MONITOR INPUT
bus will take priority for monitoring. In this case,
be aware that even if the AFL switch is turned on,
the MONITOR MASTER bus cannot be monitored.
MONITOR
ST
LR
MONO
MONO
RL
ST
PFL AFL
ON
ON
(PFL)
to METER
INPUT
Same as AUX 1
AUX 2-6
AUX 1
1
INSERT I/O
0dB
AUX OUT
+4dB
ST
MASTER
LR
MONO
AFL
ON
AUX
1413121110
9
2345678
1
2 1
3
Control panel
10 M2500—Owner’s Manual
A7/G1–A14/G8 section
These output channels control the signals of AUX
buses 7–14 or GROUP buses 1–8. You can use the
GROUP/AUX FLIP switch (page 14) to select the signals that will be controlled.
■ GROUP/AUX FLIP switch= GROUP ( )
The signals of AUX buses 7–14 will be sent to channels A7/G1–A14/G8 respectively, and will be output
individually from the AUX/GRP OUT A7/G1–A14/
G8 jacks.
■ GROUP/AUX FLIP switch= AUX ( )
The signals of GROUP buses 1–8 will be sent to channels A7/G1–A14/G8 respectively, and output individually from the AUX/GRP OUT A7/G1–A14/G8 jacks.
A LEVEL control
This adjusts the output level of AUX/GRP OUT A7/
G1–A14/G8. The “▲” position is nominal level.
B ON switch
This turns AUX/GRP OUT A7/G1–A14/G8 on/off.
When the switch is on ( ), the signals from the A7/
G1–A14/G8 section will be output from the AUX
OUT A7/G1–A14/G8 jacks respectively.
C AFL switch
This switch is used to monitor the signal from the
AUX/GRP OUT A7/G1–A14/G8 section via the
MONITOR OUT/PHONES jacks. If all the input
channel PFL switches are off, you can turn on this
AFL switch to monitor the corresponding signal of
the A7/G1–A14/G8 section from the MONITOR
OUT/PHONES jacks. You can use the MASTER PFL
switch of the monitor section to switch the monitor
signal between pre/post-fader (LEVEL control).
A7 / G1
AFL
LEVEL
010
ON
A8 / G2
AFL
LEVEL
010
ON
A9 / G3
AFL
LEVEL
010
ON
A10 / G4
AFL
LEVEL
010
ON
A11 / G5
AFL
LEVEL
010
ON
A12 / G6
AFL
LEVEL
010
ON
A13 / G7
AFL
LEVEL
010
ON
A14 / G8
AFL
LEVEL
010
ON
1
2
3
A7 / G1
AFL
LEVEL
010
ON
A8 / G2
AFL
LEVEL
010
ON
010
AUX5
AUX6
PRE
010
010
010
010
AUX7
AUX10
AUX9
AUX8
A7 / G1
AFL
LEVEL
010
ON
A8 / G2
AFL
LEVEL
010
ON
PAN
ST
LCR
ODD EVEN
MONO
LCR
1-2
3-4
5-6
7-8
Control panel
M2500—Owner’s Manual 11
G1/A7–G8/A14 section
These are the output channels that control GROUP
buses 1–8 or AUX buses 7–14. Use the GROUP/AUX
FLIP switch (page 14) to select which signals will be
controlled.
■ GROUP/AUX FLIP switch= GROUP ( )
The signals of GROUP buses 1–8 will be sent to channels G1/A7–G8/A14 respectively, and will be output
individually from the GRP/AUX OUT G1/A7–G8/
A14 jacks.
G1 / A7
ON/EDIT
AFL
10
10
20
30
40
60
50
5
0
5
PAN
LCR
MATRIX ST
MONO
LCR
CHECK
ON
G2 / A8
ON/EDIT
AFL
10
10
20
30
40
60
50
5
0
5
PAN
LCR
MATRIX ST
MONO
LCR
CHECK
ON
G3 / A9
ON/EDIT
AFL
10
10
20
30
40
60
50
5
0
5
PAN
LCR
MATRIX ST
MONO
LCR
CHECK
ON
G4 / A10
ON/EDIT
AFL
10
10
20
30
40
60
50
5
0
5
PAN
LCR
MATRIX ST
MONO
LCR
CHECK
ON
G5 / A11
ON/EDIT
AFL
10
10
20
30
40
60
50
5
0
5
PAN
LCR
MATRIX ST
MONO
LCR
CHECK
ON
G6 / A12
ON/EDIT
AFL
10
10
20
30
40
60
50
5
0
5
PAN
LCR
MATRIX ST
MONO
LCR
CHECK
ON
G7 / A13
ON/EDIT
AFL
10
10
20
30
40
60
50
5
0
5
PAN
LCR
MATRIX ST
MONO
LCR
CHECK
ON
G8 / A14
ON/EDIT
AFL
10
10
20
30
40
60
50
5
0
5
PAN
LCR
MATRIX ST
MONO
LCR
CHECK
ON
4
7
8
5
6
PAN
ST
LCR
ODD EVEN
MONO
LCR
1-2
3-4
5-6
7-8
G1 / A7
ON/EDIT
AFL
10
10
20
30
40
60
50
5
0
5
PAN
LCR
MATRIX ST
MONO
LCR
CHECK
ON
G2 / A8
ON/EDIT
AFL
10
10
20
30
40
60
50
5
0
5
PAN
LCR
MATRIX ST
MONO
LCR
CHECK
ON
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