Yamaha M2500 Owner's Manual - Page 9

Stereo input channels - mixer manual

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Control panel Stereo input channels GAIN A +10 -30 B +10 -20 A B 1 2 3 HI -15 +15 LO 4 -15 +15 EQ 5 6 0 10 AUX1 PRE 0 10 AUX2 0 10 AUX3 0 10 AUX4 PRE 0 10 AUX5 0 10 AUX6 0 10 AUX7 0 10 AUX8 PRE 0 10 AUX9 7 0 10 AUX10 0 10 AUX11 0 10 AUX12 PRE 0 10 AUX13 0 10 AUX14 BAL C L ODD R EVEN 0 10 AUX14 BAL L R ODD EVEN 8 1-2 ST 3-4 MONO 5-6 7-8 9 L CHECK ON ON/EDIT J 10 PEAK 5 NOM SIGNAL 0 5 10 20 30 40 50 60 PFL K M 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. 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. GAIN +10 -30 D EQ controls This is a two-band equalizer. The equalizer type, center frequency, and gain range of each band is shown below. Band HIGH LOW Type Shelving Center frequency 10 kHz 100 Hz Gain ±15 dB 6 M2500-Owner's Manual

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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 ste-
reo 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, cen-
ter frequency, and gain range of each band is shown
below.
0
10
AUX14
+10
–30
A
+10
–20
–15
+15
B
A
B
HI
–15
+15
LO
GAIN
EQ
AUX1
PRE
PRE
PRE
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
AUX2
AUX3
AUX4
AUX5
AUX6
AUX7
AUX10
AUX11
AUX14
AUX13
AUX9
AUX8
PRE
AUX12
BAL
L
C
R
ODD
EVEN
ON/EDIT
PFL
10
10
20
30
40
60
50
5
0
5
BAL
ST
L
R
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 pro-
vided. (Nor is there an A/B select switch.) This
control will adjust the input sensitivity of the sig-
nal 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