Yamaha 4FX Owner's Manual - Appendix
Appendix
MG12/4FX
26
Appendix
Specifications
■ Electrical Characteristics
Where 0 dBu = 0.775 V
■ General Specifications
Where 0 dBu = 0.775 V
Conditions
MIN
TYP
MAX UNIT
Total Harmonic Distortion
(MIC to ST OUT)
(THD+N) 20 Hz-20 kHz @+14 dBu 600 ohms (CH1 to 4) with
Signal input CH ST Switches are On, Signal input CH Fader,
ST Master Fader at nominal level
0.1
%
Frequency Response
(MIC to ST OUT)
20 Hz-20 kHz @+4 dBu 600 ohms with GAIN control at
minimum level
–3
0
1
dB
Hum & Noise (20 Hz-20 kHz)
Rs=150 ohms, Gain=Maximum, Sensitivity
=–60 dBu, Hum & Noise are measured with a
–6 dB/octave filter @12.7 kHz;equivalent to a
20 kHz filter with infinite dB/octave attenuation.
Equivalent Input Noise (CH1 to 4)
–128
dBu
Residual Output Noise (ST OUT)
–100
dBu
ST, GROUP Master Fader at nominal level and all CH Group
Switches and ST Switches are off. (ST, GROUP OUT)
–88
(92 dB S/N)
dBu
AUX Master Control at nominal level and all CH mix controls
at minimum level. (AUX SEND)
–81
(85 dB S/N)
dBu
ST, GROUP Master Fader and one CH Fader at nominal level.
(CH1 to 4) (ST, GROUP OUT)
–64
(68 dB S/N)
dBu
Maximum Voltage Gain
PAN/BAL : panned hard left or hard right.
CH MIC INPUT to CH INSERT OUT
60
dB
CH MIC INPUT to GROUP OUT, ST OUT (CH to ST)
84
dB
CH MIC INPUT to ST OUT (GROUP to ST)
94
dB
CH MIC INPUT to REC OUT (CH to ST)
62.2
dB
CH MIC INPUT to AUX SEND (PRE)
76
dB
CH MIC INPUT to AUX SEND (POST), EFFECT SEND
86
dB
CH LINE INPUT to GROUP OUT, ST OUT (CH to ST)
58
dB
ST CH MIC INPUT to GROUP OUT, ST OUT (CH to ST)
84
dB
ST CH LINE INPUT to GROUP OUT, ST OUT (ST CH to ST)
58
dB
ST CH LINE INPUT to AUX SEND (PRE)
47
dB
ST CH LINE INPUT to AUX SEND (POST), EFFECT SEND
57
dB
ST CH INPUT to GROUP OUT, ST OUT (ST CH to ST)
34
dB
RETURN to ST OUT
16
dB
RETURN to AUX SEND
9
dB
2TR INPUT to ST OUT
27.8
dB
Crosstalk (1 kHz)
Adjacent inputs
–70
dB
input to output
–70
dB
Monaural/Stereo Input GAIN Control
variable range
44
dB
Monaural/Stereo CH High Pass Filter
80 Hz 12 dB/octave
Monaural/Stereo CH Equalization
Turn over /roll-off frequency of shelving, 3 dB below maximum
variable level
±15 dB (Max. Variation)
HIGH: 10 kHz (shelving)
MID: 2.5 kHz (peaking)
LOW: 100 Hz (shelving)
Internal Digital Effect
16 programs, Parameter control
FOOT switch (ON/OFF)
Phantom Power
Supplied when Phantom +48 V switch is ON. (XLR-type input jacks)
Monaural/Stereo Input PEAK Indicator
On each channel: red indicator lights if post-EQ signal (on ST channels, if either post-EQ
signal or post-mic-amp signal) comes within 3 dB of the clipping level.
Level Meters
Two 12-points LED level meters [ST (L, R)]
Peak point: red indicator
+5, +3, +1, 0: yellow indicators
–1, –3, –5, –7, –10, –15, –20: green indicators
Included Accessories
Power adaptor (PA-20)
Options Footswitch
(FC5)
Power Consumption
36 W
Dimensions (W × H × D)
322 mm × 108 mm × 416.6 mm
Weight
5 kg