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M2500—Owner’s Manual
Specifications
General specifications
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.