Reference
Specifications
■ Electrical Specifications
Frequency Response
Total Harmonic Distortion
(THD + N)
Hum & Noise
Hum & Noise are measured
with a 6 dB/octave filter @
12.7 kHz; equivalent to a 20
kHz filter with infinite
dB/octave attenuation.
Crosstalk (1 kHz)
Maximum voltage gain (1 kHz)
All faders and controls are
maximum when measured.
PAN/BAL: panned hard left
or hard right
Phantom Voltage
■ General Specifications
Input HPF
Input equalization
±15 dB maximum
Turn over/roll-off frequency
of shelving: 3 dB blow maxi-
mum variable level.
PEAK Indicator
Internal Digital Effect*
LED Level Meter
Power Supply Adaptor
Power Consumption
Dimensions (W x H x D)
Net Weight
All faders are nominal if not specified.
Output impedance of signal generator: 150 ohms
* The MG124CX feature is described first, followed by the MG124C feature in brackets: MG124CX (MG124C)
STEREO OUT GAIN: min (CHs 1-7/8)
20 Hz-20 kHz
GROUP OUT
Nominal output level @1 kHz
EFFECT/AUX
Input: CHs 1 to 11/12, RETURN, 2TR IN
(AUX1, 2*) SEND
MONITOR OUT, REC OUT
STEREO OUT +14 dBu @ 20 Hz-20 kHz, Input GAIN Control at
minimum
CH INPUT 1-4 MIC EIN (Equivalent Input Noise): Rs = 150 Ω, GAIN:
maximum
STEREO OUT STEREO OUT, GROUP Master fader at nominal
level and all channels' ST and 1-2 switches off.
GROUP OUT
EFFECT/AUX
Master EFFECT/AUX (AUX1, 2) control at nominal level
(AUX1, 2*) SEND
and all CH EFFECT/AUX (AUX1, 2) controls at minimum.
STEREO OUT STEREO OUT, GROUP Master fader and one CH
fader at nominal level.
GROUP OUT
STEREO OUT Residual Output Noise
Adjacent Input CHs 1-4
Input to Output STEREO L/R, CHs 1-4, PAN: panned hard left or right
Rs = 150 Ω
MIC to CH INSERT OUT
INPUT GAIN: maximum
MIC to STEREO OUT
MIC to GROUP OUT
MIC to GROUP to ST
MIC to REC OUT
MIC to MONITOR OUT, ST TO MONITOR
MIC to PHONES OUT
MIC to AUX (AUX1*) SEND PRE
MIC to AUX (AUX1*) SEND POST, EFFECT
(AUX2*) SEND
CH 5/6, 7/8 LINE to STEREO OUT
CH 5/6, 7/8 LINE to GROUP OUT
CH 5/6, 7/8 AUX (AUX1*) SEND PRE
CH 5/6, 7/8 LINE to AUX (AUX1*) SEND POST,
EFFECT (AUX2*) SEND
CH 9/10, 11/12 to STEREO OUT
CH 9/10, 11/12 to GROUP OUT
Rs = 150 Ω RETURN to STEREO OUT
RETURN to EFFECT (AUX2*) SEND
Rs = 600 Ω 2TR IN to STEREO OUT
MIC no load
CHs 1-7/8, 80 Hz, 12 dB/oct
CHs 1-7/8 HIGH: 10 kHz (shelving)
MID: 2.5 kHz (peaking)
LOW: 100 Hz (shelving)
CH 9/10-11/12 HIGH: 10 kHz (shelving)
LOW: 100 Hz (shelving)
Red LED turns on when post EQ signal (either post MIC HA or post EQ signal
for CHs 5/6, 7/8) reaches –3 dB below clipping (+17 dBu).
16 PROGRAM, PARAMETER control
Foot Switch (Digital Effect On/Off)
Pre MONITOR Level 2x12 points LED meter (PEAK, +10, +6, +3, 0, –3, –6, –10, –15, –20, –25, –30 dB)
PEAK lights if the signal level reaches 3 dB below the clipping level.
PA-20 AC 35 VCT, 0.94 A, Cable Length = 3.6 m
30 W
346.2 mm x 86.1 mm x 436.6 mm
3.2 kg (MG124CX), 3 kg (MG124C)
MIN
TYP
MAX
–3.0
0.0
1.0
0.1
–128
–88
–81
–64
–98
–70
–70
60
84
94
62.2
94
83
76
86
58
47
57
34
16
9
27.8
48
MG124CX/MG124C Owner's Manual
UNIT
dB
%
dBu
dB
dB
V
67