Yamaha M2500 Manual Do Utilizador

0 dB is referenced to 0.775 Vrms.

Total Harmonic Distortion

Less than 0.1% (THD+N)

(Master output)

20 Hz–20 kHz @ +14 dB 600 

Ω

Frequency Response

0+1, –3 dB

(Master Output)

20 Hz–20 kHz @ +4 dB 600 

Ω

Gain control at minimum level

Hum & Noise (20 Hz–20 kHz)*1

–128 dB Equivalent Input Noise.

Rs= 150 

Ω

–99 dB Residual Output Noise.

(STEREO OUT, MONO/C OUT, 

GROUP/AUX OUT, AUX OUT, 
AUX/GROUP OUT)

Input Gain= Max.
Input Pad= OFF
     ||
Input sensitivity= –60 dB

–64 dB(68 dB S/N) STEREO OUT  Master Level control and 

one Ch fader at nominal level.

–80 dB(84 dB S/N) STEREO OUT, MONO/C OUT Master fader 

at nominal level and all Ch assign SW’s off 
and all GROUP to ST SW’s off.

–81 dB(85 dB S/N) GROUP1/AUX7–GROUP8/AUX14 OUT 

Master Level control at nominal level and all 
Ch assign SW’s off.
GROUP/AUX FLIP SW off.

–75 dB(79 dB S/N) AUX1–6, AUX7/GROUP1–AUX14/GROUP8 

OUT Master Level control at nominal level 
and all Ch send controls at minimum.
GROUP/AUX FLIP SW off.

–90 dB(94 dB S/N) MATRIX OUT Master level control at nomi-

nal level and all Matrix Mix controls at mini-
mum level.

Crosstalk

–70 dB @ 1 kHz

adjacent inputs.

–70 dB @ 1 kH

input to output. (CH INPUT)

–50 dB @ 1 kHz

input to output. (ST CH INPUT)

Maximum Voltage Gain
GROUP/AUX FLIP SW= off

60 dB

CH INPUT to CH INSERT OUT

84 dB

CH INPUT to GROUP1/AUX7–GROUP8/
AUX14 OUT

80 dB

CH INPUT to AUX1, 2 OUT(Pre Fader)

90 dB

CH INPUT to AUX3–6, AUX7/GROUP1–
AUX14/GROUP8 OUT(Post Fader)

84 dB

CH INPUT to STEREO OUT(CH to ST)

70 dB

CH INPUT to MONITOR OUT(PFL)

CH INPUT PAD SW

26 dB

CH INPUT GAIN control

44 dB

variable

ST CH 1A, 2–4 INPUT GAIN control

40 dB

variable

ST CH 1B INPUT GAIN control

30 dB

variable

CH INPUT High Pass Filter

18 dB/octave

roll-off below 80 Hz at –3 dB point.

CH INPUT Equalization

+15, –15 dB maximum

HIGH

10 kHz (shelving)

HIGH-MID 400– 8 kHz (peaking)
LOW-MID 80–1.6 kHz (peaking)
LOW

100 Hz (shelving)

ST CH INPUT Equalization

+15, –15 dB maximum

HIGH

10 kHz (shelving)

LOW

100 Hz (shelving)

Phantom Power

+48 VDC is applied to balanced inputs (via 
6.8 k

Ω

 current-limiting/isolation resistors) for 

powering condenser microphones; may be 
turned ON or OFF via rear-panel phantom 
Master switch.
When Master is ON, individual channels 
may be turned ON or OFF via +48V 
switches (with red LED) on each input chan-
nel.

CH LED Indicators

PEAK

LED(red) built into each CH INPUT turns on 
when pre-Fader level reaches +17 dB.

NOM

LED(yellow) built into each CH INPUT turns 
on when pre-Fader level reaches 0 dB.

SIGNAL

LED(green) built into each CH INPUT turns 
on when pre-Fader level reaches –13 dB.

ST CH LED Indicators

PEAK

LED(red) built into each ST CH INPUT turns 
on when pre-Fader [L+R] level reaches 
+17 dB.

NOM

LED(yellow) built into each ST CH INPUT 
turns on when pre-Fader [L+R] level 
reaches 0 dB.

SIGNAL

LED(green) built into each ST CH INPUT 
turns on when pre-Fader [L+R] level 
reaches –13 dB.

Oscillator/Noise

Switchable sine wave @ 100 Hz, 1 kHz or 
10 kHz, or pink noise.

Scene Memory

Direct Scene Memory recall switches (1–8)
Switchable Scene Memory recall (1–128)

VU Meters

11 illuminated meters
(0VU= +4 dB output @ 600

Ω

 load)

#1 ; GROUP1/AUX7•AUX1•AUX7/GROUP1•MATRIX1
#2 ; GROUP2/AUX8•AUX2•AUX8/GROUP2•MATRIX2
#3 ; GROUP3/AUX9•AUX3•AUX9/GROUP3•MATRIX3
#4 ; GROUP4/AUX10•AUX4•AUX10/GROUP4•MATRIX4
#5 ; GROUP5/AUX11•AUX5•AUX11/GROUP5•MATRIX5
#6 ; GROUP6/AUX12•AUX6•AUX12/GROUP6•MATRIX6
#7 ; GROUP7/AUX13•NONE•AUX13/GROUP7•MATRIX7
#8 ; GROUP8/AUX14•NONE•AUX14/GROUP8•MATRIX8
#9 ; STEREO L•PFL/AFL L
#10 ; MONO/C
#11 ; STEREO R•PFL/AFL R

VU Meter Peak Indicators

LED(red) built into each VU meter turns on 
when output signal is above the level 3 dB 
lower than clipping level.

Dimension

Heigt

265 mm

Depth

875 mm (except rear connectors)

Width

2385 mm(56C), 2142 mm(48C), 
1899 mm(40C), 1642 mm(32), 
1400 mm(24)

Weight

102kg(56C), 93kg(48C), 84kg(40C), 
71kg(32), 62kg(24)

*1 Hum & Noise are measured with a 6 dB/octave filter @ 12.7 kHz; 

equivalent to a 20 kHz filter with infinite dB/octave attenuation.

For European Model
Purchaser/User information specified in EN55103-1 and EN55103-2.
Conformed Enviroment: E1, E2, E3 and E4.