Yamaha M2500 Control panel, Input channel section, Monaural input channels, AUX 1-AUX 14 controls

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.

	+48V	1
GAIN
+10	–34	2
–16	–60	3
	26dB
4		5

80

HI

–15 +15

HI-MID

400 8k

–15 +156

LO-MID

80 1.6k

–15 +15

LO

–15	+15
	EQ	7
0	10
AUX1 PRE		0	10
		AUX14
0	10	PAN	C
AUX2				J
		L	R
0	10	ODD	EVEN
AUX3
0	10	1-2	ST
AUX4		3-4	MONO	K
	PRE
0	10	5-6
AUX5
		7-8	LCR

010

AUX6

8

		CHECK
		ON	L
0	10
	AUX7
		ON/EDIT
0	10	9
	AUX8
	PRE	10 PEAK
0	10	5 NOM	M
	AUX9

0 SIGNAL

010

AUX10

5

0	10	10
AUX11
		20

010

AUX12

	PRE		30
0	10		40
AUX13
		N	50
			60	O
0	10

AUX14	PFL
PAN
C

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.

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.)

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.

E80 (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 attenu- ated by an 18 dB/oct curve.

F EQ controls

This is a four-band equalizer. The type, center fre- quency, and gain range of each band is shown below.

Band	Type	Center frequency	Gain
HIGH	Shelving	10 kHz
HIGH-MID	Peaking	400 Hz to 8 kHz	±15 dB
LOW-MID	Peaking	80 Hz to 1.6 kHz
LOW	Shelving	100 Hz

G EQ switch

This switches the equalizer on/off. When the switch is pressed in (), the equalizer will be on.

HAUX 1–AUX 14 controls

These adjust the level at which the signal of the mon- aural input channel is set to AUX buses 1 to 14. Nom- inal 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.

M2500—Owner’s Manual 3