Yamaha Mg 206 C Manual

							
Reference
MG206C/MG166CX/MG166C   Owner’s Manual75
Specifications
■Electrical Specifications
■ General Specifications
All faders are nominal if not specified.
Output impedance of signal generator: 150 ohms
MG206C
MINTYPMAXUNIT
Frequency Response STEREO OUT GAIN: min (CHs 1–19/20)
20 Hz–20 kHz
Nominal output level @1 kHz
Input: CHs 1 to 19/20, RETURN, 2TR IN -
3.0 0.0 1.0 dB
GROUP OUT
AUX SEND
MONITOR OUT, REC OUT
T otal Harmonic Distor-
tion (THD + N) STEREO OUT +14 dBu @ 20 Hz–20 kHz, Input GAIN Control at minimum
0.1 %
Hum & Noise
Hum & Noise are mea-
sured with a 6 
dB/octave filter @ 12.7 
kHz; equivalent to a 20 
kHz filter with infinite 
dB/octave attenuation. CH INPUT 1–12 MIC EIN (Equivalent Input Noise): Rs = 150 
Ω, GAIN: maximum -128
dBu
STEREO OUT STEREO OUT, GROUP 1-2 fader and GROUP 3-4 fader at 
nominal level and all channels’ ST and 1-2, 3-4 switches off. -88
GROUP OUT
AUX SEND Master/AUX control at nominal level and all CH AUX controls at 
minimum. -81
STEREO OUT STEREO OUT, GROUP 1-2, GROUP 3-4 faders and one CH  fader at nominal level. -64
GROUP OUT
STEREO OUT Residual Output Noise -98
Crosstalk (1 kHz) Adjacent Input CHs 1–12 -70 dB
Input to Output STEREO L/R, CHs 1–12, PAN: panned hard left or right -70
Maximum voltage gain 
(1 kHz)
All faders and controls 
are maximum when 
measured.
PAN/BAL: panned 
hard left or hard right Rs = 150 
Ω
INPUT GAIN: maximum MIC to CH INSERT OUT 60
dB
MIC to STEREO OUT
84
MIC to GROUP OUT
MIC to GROUP to ST 94
MIC to REC OUT 62.2
MIC to MONITOR OUT, ST TO MONITOR  94
MIC to PHONES OUT 83
MIC to AUX SEND PRE 76
MIC to AUX SEND POST 86
CH 17/18, 19/20 LINE to STEREO OUT 58
CH 17/18, 19/20 LINE to GROUP OUT
CH 17/18, 19/20 LINE to AUX SEND PRE  47
CH 17/18, 19/20 LINE to AUX SEND POST 57
Rs = 150  ΩRETURN to STEREO OUT 16
RETURN to AUX SEND 9
Rs = 600  Ω2TR IN to STEREO OUT 27.8
Phantom Voltage MIC no  load 48 V
Input HPF 80 Hz, 12 dB/oct
Input equalization
±15 dB maximum
Tu rn over/roll-off frequency of 
shelving: 3 dB blow maximum 
var iable level. CHs 1–12 HIGH: 10 kHz (shelving)
MID: 250 Hz–5 kHz (peaking)
LOW: 100 Hz (shelving)
CH 13/14–19/20 HIGH: 10 kHz (shelving) MID: 2.5 kHz (peaking)
LOW: 100 Hz (shelving)
PEAK Indicator Red LED turns on when post EQ signal (either post MIC HA or post EQ signal for  CHs 13/14–19/20) reaches -3 dB below clipping (+17 dBu).
LED Level Meter Pre MONITOR Level STEREO/GROUP/PFL bus2x12 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.
Po wer Supply Adaptor PA-30 AC 35 VCT, 1.4 A, Cable Length = 3.6 m
Po wer Consumption 40 W
Dimensions (W x H x D) 478 mm x 102 mm x 496 mm
Net Weight 6.0 kg 
						

							
Specifications
MG206C/MG166CX/MG166C   Owner’s Manual
Reference
76
■Input Specifications
Where 0 dBu = 0.775 Vrms and 0 dBV= 1 Vrms
*Sensitivity : The lowest level that will produce an output of +4 dB (1.23 V), or the nominal output level when the unit is set  to 
the maximum level. (All faders and level controls are at their maximum position.)
■ Output Specifications
Where 0 dBu = 0.775 Vrms and 0 dBV = 1 Vrms
Input ConnectorsGainInput 
ImpedanceAppropriate  ImpedanceSensitivity *Nominal  LevelMax. before  ClippingConnector Specifications
CH INPUT MIC 
(CHs 1–12) -60 dB
3kΩ 50–600
Ω 
Mics -80 dBu 
(0.078 mV) -60 dBu 
(0.775 mV) -40 dBu 
(7.75 mV) XLR-3-31 type (balanced [1 = GND, 2 = 
HOT, 3 = COLD])
-16 dB -36 dBu 
(12.3 mV) -16 dBu 
(123 mV) +4 dBu 
(1.23 V)
CH INPUT LINE 
(CHs 1–12) -34 dB
10kΩ 600
Ω 
Lines -54 dBu 
(1.55 mV) -34 dBu 
(15.5 mV) -14 dBu 
(155 mV) TRS phone jack (balanced [Tip = HOT, 
Ring = COLD, Sleeve = GND])
+10 dB -10 dBu 
(245 mV) +10 dBu 
(2.45 V) +30 dBu 
(24.5 V)
ST CH MIC INPUT 
(CHs 13/14–19/20) -60 dB
3kΩ 50–600
Ω 
Mics -80 dBu 
(0.078 mV) -60 dBu 
(0.775 mV) -40 dBu 
(7.75 mV) XLR-3-31 type (balanced [1 = GND, 2 = 
HOT, 3 = COLD])
-16 dB -36 dBu 
(12.3 mV) -16 dBu 
(123 mV) -6 dBu 
(389 mV)
ST CH LINE INPUT 
(CHs 13/14, 15/16) -34 dB
10kΩ 600
Ω 
Lines -54 dBu 
(1.55 mV) -34 dBu 
(15.5 mV) -14 dBu 
(155 mV) Phone jack (unbalanced)
+10 dB -10 dBu 
(245 mV) +10 dBu 
(2.45 V) +30 dBu 
(24.5 V)
ST CH INPUT 
(CHs 17/18, 19/20) -34 dB
10kΩ 600
Ω 
Lines -54 dB 
(1.55 mV) -34 dB 
(15.5 mV) -14 dB 
(155 mV) Phone jack (unbalanced)
RCA pin jack
+10 dB -10 dBu 
(245 mV) +10 dBu 
(2.45 V) +30 dBu 
(24.5 V)
CH INSERT IN 
(CHs 1–12) —
10kΩ 600
Ω 
Lines -20 dBu 
(77.5 mV) 0 dBu 
(0.775 V) +20 dBu 
(7.75 V) TRS phone Jack (unbalanced [Tip = 
Out, Ring = In, Sleeve = GND])
RETURN (L, R) — 10k Ω600
Ω 
Lines -12 dBu 
(195 mV) +4 dBu 
(1.23 V) +24 dBu 
(12.3 V) Phone jack (unbalanced)
2TR IN (L, R) — 10k Ω600
Ω 
Lines -26 dBV 
(50.1 mV) -10dBV 
(0.316V) +10dBV 
(3.16 V) RCA pin jack
Output ConnectorsOutput 
ImpedanceAppropriate  ImpedanceNominal LevelMax. before  clippingConnector Specifications
STEREO OUT (L, R) 75 Ω600Ω Lines +4dBu (1.23 V) +24 dBu (12.3 V) XLR-3-32 type (balanced [1 = GND, 2 = 
HOT, 3 = COLD])
TRS phone jack (balanced [Tip = HOT, Ring 
= COLD, Sleeve = GND])
GROUP OUT (1–4) 150 Ω10kΩ Lines +4dBu (1.23 V) +20 dBu (7.75 V) TRS phone jack (impedance balanced [Tip 
= HOT, Ring = COLD, Sleeve = GND])
A UX SEND (1–4) 150 Ω10kΩ Lines +4dBu (1.23 V) +20 dBu (7.75 V) TRS phone jack (impedance balanced [Tip 
= HOT, Ring = COLD, Sleeve = GND])
CH INSERT OUT 
(CHs 1–12) 75
Ω 10kΩ Lines 0 dBu (0.775 V) +20 dBu (7.75 V) TRS phone jack (unbalanced [Tip = Out, 
Ring = In, Sleeve = GND])
REC OUT (L, R) 600 Ω10kΩ Lines -10 dBV (0.316 V) +10 dBV (3.16 V) RCA pin jack
MONITOR OUT (L, R) 150 Ω10kΩ Lines +4 dBu (1.23 V) +20 dBu (7.75 V) TRS phone jack (impedance balanced [Tip 
= HOT, Ring = COLD, Sleeve = GND])
PHONES OUT 100 Ω40Ω Phones 3 mW 75 mW TRS phone jack 
						

							
Reference
Specifications
MG206C/MG166CX/MG166C   Owner’s Manual77
■ Electrical Specifications
■ General Specifications
All faders are nominal if not specified.
Output impedance of signal generator: 150 ohms
*MG166CX: AUX1, 2, EFFECT
MG166C: AUX1, 2, 3
MG166CX/MG166C
MINTYPMAXUNIT
Frequency Response STEREO OUT GAIN: min (CHs 1–11/12)
20 Hz–20 kHz
Nominal output level @1 kHz
Input: CHs 1 to 15/16, RETURN, 2TR IN -
3.0 0.0 1.0 dB
GROUP OUT
EFFECT/AUX* SEND
MONITOR OUT, REC OUT
T otal Harmonic Distor-
tion (THD + N) STEREO OUT +14 dBu @ 20 Hz–20 kHz, Input GAIN Control at minimum
0.1 %
Hum & Noise
Hum & Noise are mea-
sured with a 6 
dB/octave filter @ 12.7 
kHz; equivalent to a 20 
kHz filter with infinite 
dB/octave attenuation. CH INPUT 1–8 MIC EIN (Equivalent Input Noise): Rs = 150 
Ω, GAIN: maximum -128
dBu
STEREO OUT STEREO OUT, GROUP 1-2 fader and GROUP 3-4 fader at 
nominal level and all channels’ ST and 1-2, 3-4 switches off. -88
GROUP OUT
EFFECT/AUX* SEND Master EFFECT/AUX* control at nominal level and all CH  EFFECT/AUX* controls at minimum. -81
STEREO OUT STEREO OUT, GROUP 1-2, GROUP 3-4 faders and one CH  fader at nominal level. -64
GROUP OUT
STEREO OUT Residual Output Noise -98
Crosstalk (1 kHz) Adjacent Input CHs 1–8 -70 dB
Input to Output STEREO L/R, CHs 1–8, PAN: panned hard left or right -70
Maximum voltage gain 
(1 kHz)
All faders and controls 
are maximum when 
measured.
PAN/BAL: panned 
hard left or hard right Rs = 150 
Ω
INPUT GAIN: maximum MIC to CH INSERT OUT 60
dB
MIC to STEREO OUT
84
MIC to GROUP OUT
MIC to GROUP to ST 94
MIC to REC OUT 62.2
MIC to MONITOR OUT, ST TO MONITOR  94
MIC to PHONES OUT 83
MIC to AUX SEND PRE 76
MIC to AUX SEND POST, EFFECT* SEND 86
CH 9/10, 11/12 LINE to STEREO OUT 58
CH 9/10, 11/12 LINE to GROUP OUT
CH 9/10, 11/12 LINE to AUX SEND PRE  47
CH 9/10, 11/12 LINE to AUX SEND POST, EFFECT* SEND 57
CH 13/14, 15/16 to STEREO OUT 34
CH 13/14, 15/16 to GROUP OUT
Rs = 150  ΩRETURN to STEREO OUT 16
RETURN to EFFECT/AUX* SEND 9
Rs = 600  Ω2TR IN to STEREO OUT 27.8
Phantom Voltage MIC no  load 48 V
Input HPF CHs 1–11/12 80 Hz, 12 dB/oct
Input equalization
±15 dB maximum
Tu rn over/roll-off frequency of 
shelving: 3 dB blow maximum 
var iable level. CHs 1–8 HIGH: 10 kHz (shelving)
MID: 250 Hz–5 kHz (peaking)
LOW: 100 Hz (shelving)
CH 9/10–15/16 HIGH: 10 kHz (shelving) MID: 2.5 kHz (peaking)
LOW: 100 Hz (shelving)
PEAK Indicator Red LED turns on when post EQ signal (either post MIC HA or post EQ signal for  CHs 9/10–15/16) reaches -3 dB below clipping (+17 dBu).
Internal Digital Effect 
(Only MG166CX) 16 PROGRAM, PARAMETER control
F
oot Switch (Digital Effect On/Off)
LED Level Meter Pre MONITOR Level STEREO/GROUP/PFL bus2x12 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.
Po wer Supply Adaptor PA-30 AC 35 VCT, 1.4 A, Cable Length = 3.6 m
Po wer Consumption 35 W (MG166CX), 30 W (MG166C)
Dimensions (W x H x D) 478 mm x 102 mm x 496 mm
Net Weight 5.5 kg (MG166CX), 5.3 kg (MG166C) 
						

							
Specifications
MG206C/MG166CX/MG166C   Owner’s Manual
Reference
78
■Input Specifications
Where 0 dBu = 0.775 Vrms and 0 dBV= 1 Vrms
*Sensitivity : The lowest level that will produce an output of +4 dB (1.23 V), or the nominal output level when the unit is set  to 
the maximum level. (All faders and level controls are at their maximum position.)
■ Output Specifications
Where 0 dBu = 0.775 Vrms and 0 dBV= 1 Vrms
*MG166CX: AUX1, 2, EFFECT
MG166C: AUX1, 2, 3
Input ConnectorsGainInput 
ImpedanceAppropriate  ImpedanceSensitivity *Nominal  LevelMax. before  ClippingConnector Specifications
CH INPUT MIC 
(CHs 1–8) -60 dB
3kΩ 50–600
Ω 
Mics -80 dBu 
(0.078 mV) -60 dBu 
(0.775 mV) -40 dBu 
(7.75 mV) XLR-3-31 type (balanced [1 = GND, 2 
= HOT, 3 = COLD])
-16 dB -36 dBu 
(12.3 mV) -16 dBu 
(123 mV) +4 dBu 
(1.23 V)
CH INPUT LINE 
(CHs 1–8) -34 dB
10kΩ 600
Ω 
Lines -54 dBu 
(1.55 mV) -34 dBu 
(15.5 mV) -14 dBu 
(155 mV) TRS phone jack (balanced [Tip = 
HOT, Ring = COLD, Sleeve = GND])
+10 dB -10 dBu 
(245 mV) +10 dBu 
(2.45 V) +30 dBu 
(24.5 V)
ST CH MIC INPUT 
(CHs 9/10, 11/12) -60 dB
3kΩ 50–600
Ω 
Mics -80 dBu 
(0.078 mV) -60 dBu 
(0.775 mV) -40 dBu 
(7.75 mV) XLR-3-31 type (balanced [1 = GND, 2 
= HOT, 3 = COLD])
-16 dB -36 dBu 
(12.3 mV) -16 dBu 
(123 mV) -6 dBu 
(389 mV)
ST CH LINE 
INPUT 
(CHs 9/10, 11/12) -34 dB
10kΩ 600
Ω 
Lines -54 dBu 
(1.55 mV) -34 dBu 
(15.5 mV) -14 dBu 
(155 mV) Phone jack (unbalanced)
+10 dB -10 dBu 
(245 mV) +10 dBu 
(2.45 V) +30 dBu 
(24.5 V)
ST CH INPUT 
(CHs 13/14, 15/16)— 10kΩ 600
Ω 
Lines -30 dBu 
(24.5 mV) -10 dBu 
(245 mV) +10 dBu 
(2.45 V) Phone jack (unbalanced)
RCA pin jack
CH INSERT IN 
(CHs 1–8) —
10kΩ 600
Ω 
Lines -20 dBu 
(77.5 mV) 0 dBu 
(0.775 V) +20 dBu 
(7.75 V) TRS phone Jack (unbalanced [Tip = 
Out, Ring = In, Sleeve = GND])
RETURN (L, R) — 10k Ω600
Ω 
Lines -12 dBu 
(195 mV) +4 dBu 
(1.23 V) +24 dBu 
(12.3 V) Phone jack (unbalanced)
2TR IN (L, R) — 10k Ω600
Ω 
Lines -26 dBV 
(50.1 mV) -10dBV 
(0.316V) +10dBV 
(3.16 V) RCA pin jack
Output ConnectorsOutput 
ImpedanceAppropriate  ImpedanceNominal LevelMax. before  clippingConnector Specifications
STEREO OUT (L, R) 75 Ω600Ω Lines +4dBu (1.23 V) +24 dBu (12.3 V) XLR-3-32 type (balanced [1 = GND, 2 = 
HOT, 3 = COLD])
TRS phone jack (balanced [Tip = HOT, Ring 
= COLD, Sleeve = GND])
GROUP OUT (1–4) 150 Ω10kΩ Lines +4dBu (1.23 V) +20 dBu (7.75 V) TRS phone jack (impedance balanced [Tip 
= HOT, Ring = COLD, Sleeve = GND])
EFFECT/AUX* SEND 150 Ω10kΩ Lines +4dBu (1.23 V) +20 dBu (7.75 V) TRS phone jack (impedance balanced [Tip 
= HOT, Ring = COLD, Sleeve = GND])
CH INSERT OUT 
(CHs 1–8) 75
Ω 10kΩ Lines 0 dBu (0.775 V) +20 dBu (7.75 V) TRS phone jack (unbalanced [Tip = Out, 
Ring = In, Sleeve = GND])
REC OUT (L, R) 600 Ω10kΩ Lines -10 dBV (0.316 V) +10 dBV (3.16 V) RCA pin jack
MONITOR OUT (L, R) 150 Ω10kΩ Lines +4 dBu (1.23 V) +20 dBu (7.75 V) TRS phone jack (impedance balanced [Tip 
= HOT, Ring = COLD, Sleeve = GND])
PHONES OUT 100 Ω40Ω Phones 3 mW 75 mW TRS phone jack 
						

							
Reference
Specifications
MG206C/MG166CX/MG166C   Owner’s Manual79
■ Dimensional Diagrams (MG206C/MG166CX/MG166C)
■ Rack Mounting
To mount the MG mixer, it requires 12U of rack space.
If the MG mixer is to be mounted with devices that tend 
to generate heat, such as power amplifiers, be sure to 
install ventilation panels to prevent high temperatures 
from developing inside the mixer.
*Specifications and descriptions in this owner’s manual are for information purposes only. Yamaha Corp. reserves 
the right to change or modify products or specifications at any time without prior notice. Since specifications, 
equipment or options may not be the same in every locale, please check with your Yamaha dealer.
496488.5
102
43
41
98478
5
444
Unit: mm
12U
* 12U (Approx. 534mm)
CAUTION 
						

							
Specifications
MG206C/MG166CX/MG166C   Owner’s Manual
Reference
80
■Block Diagram and Level Diagram (MG206C)
AUX SEND 1[+4dBu]LMONITOR OUT[+4dBu]RPHONES[3mW,40ohms]
RL
YE
CH Fader[-10dBu]
BA
RE +48V
PHANTOM
MIC[-60 to -16dBu]
[-34 to +10dBu]
[-34 to +10dBu]LINE R
LINE L/MONO
A
UX1
[-6dBu]
TH+GAINCOMP
CH1 to 8
LED Meter
SUM
DR
A
UX2
[-6dBu]
AUX4
[-6dBu]
BAL/PAN
[-6dBu]
STEREO
2TR IN
HPF
[0dBu]
HPF
MIC[-60 to -16dBu]LINE
INSERT
I/O[-34 to +10dBu]
[0dBu]
CH INPUT(CH1 to 12)
HA
[16 to 60dB]GAIN Trim
HPF
[-34 to +10dBu]
HPF
MIC[-60 to -16dBu]
ST CH INPUT
HA
(CH13/14, 15/16)HA
HPF
HPF
ST CH INPUT(CH17/18, 19/20) [-34 to +10dBu]
LINE L
[-34 to +10dBu]
LINE R
[-34 to +10dBu]
[0dBu]
CH9 to 12RE
PEAK
Hi GMid G
Lo G3-Stage EQMid f
HA[0dBu]
[6 to 50dB]GAIN Trim
HA
HiMidLo3-Stage EQ3-Stage EQ RE
PEAK
[0dBu]
YE ON[0dBu]
R
L/MONO
RETURN
(RETURN1/2)
[+4dBu]
HA[0dBu]HA
[6 to 50dB]
GAIN Trim
INVINV
[0dBu]
[0dBu]
INVINV
L
R
2TR IN
[-10dBV]
[-7.8dBu]
[-10dBu]
BA
CH FaderBA
[0dBu]PA N ST
G1–2
G3–4[0dBu]
[0dBu]
[0dBu]
A
UX3
[-6dBu]
PREPRE+15V
PFL[0dBu]STG1–2[0dBu]G3–4[0dBu][-6dBu]
AUX 1
[-6dBu]
AUX 2AUX 3
[-6dBu]
AUX 4
[-6dBu]PFL
+15V
ST CH INPUT 17/18-19/20
— Same as ST CH INPUT 13/14-15/16
A
UX 1
[-14dBu]
AUX 2
[-14dBu]
ST/MONITOR
[-6dBu]
AUX1
A UX2
A UX3
A UX4
STEREO L
STEREO R
GROUP 1
GROUP 2
GROUP 3
GROUP 4
PFL L
PFL R
PFL CTRL
SUMSUMSUMSUM[0dBu] GROUP Fader
[0dBu] [-10dBu]
BABA
GROUP Fader
[0dBu] [-10dBu]
BABA
TO STEREO
SUMSUM
SUM
1GROUP OUT[+4dBu]234
1-2/3-4
[-10dBu]ST Fader
BABA
[0dBu] [0dBu]
SUM
RSTEREO OUT[+4dBu]L
REC OUT[-10dBV]
[-7.8dBu]
MONI/PHONES
[-16dBu]
INVINV
[0dBu]
LED Meter
SUM
DR
ST/GROUP
[0dBu]SUM[0dBu]SUM
[-6dBu]
BA
AUX SEND 1
[-6dBu]
[0dBu]
SUM
AUX SEND 2 to 4 — Same as AUX SEND 1
MONITOR MIX
+20dBu +30dBu
0dBu
+10dBu
-20dBu -10dBu
-30dBu
+20dBu +30dBu
0dBu
+10dBu
-20dBu -10dBu
-40dBu -30dBu
-60dBu -50dBu
CH IN LINE Gain:Min [+10dBu]
CH IN MIC Gain:Min [-16dBu]
CH IN LINE Gain:Max [-34dBu]
CH IN MIC Gain:Max [-60dBu]
Clip LevelST CH IN LINE Gain:Min [+10dBu]
ST CH IN MIC Gain:Min [-16dBu]
ST CH IN LINE Gain:Max [-34dBu]
ST CH IN MIC Gain:Max [-60dBu]
Clip Level
ST CH IN
[-10dBu] Clip Level
RETURN [+4dBu]
[-7.8dBu]
2TR IN [-10dBV]
CH Level
ST CH Level
[Nominal:-10dB] Clip Level
CH AUX *1
[Nominal:-6dB]
ST CH AUX *1
[Nominal:-6dB] RETURN
2TR IN
[Nominal:-6dB] Clip Level
A UX SEND *1
[Nominal:-6dB] A
UX SEND *1 [+4dBu] Clip Level
GROUP OUT [+4dBu]
GROUP Fader
[Nominal:-10dB]
ST Master
[Nominal:-10dB]Clip Level
ST OUT [+4dBu]
REC OUT  [-7.8dBu] Clip Level
MONI/PHONES
[Nominal:-16dB]
MONITOR OUT [+4dBu]PHONES [3mW @ 40ohms]
PRE
PRE 
						

							
Reference
Specifications
MG206C/MG166CX/MG166C   Owner’s Manual81
■ Block Diagram and Level Diagram (MG166CX/MG166C)
BA
[-10dBu]
L
R
2TR IN
[-10dBV]
[-7.8dBu]
HiMidHiMidLo
Hi GMid G
Lo G
[-34 to +10dBu]
HPFHPF
[0dBu]
HPF
REC OUT
R L
INV
[0dBu]
TO ST
GROUP Fader
GROUP Fader
1GROUP OUT[+4dBu]2
STEREO Fader
STEREO OUT[+4dBu]RL
[0dBu]
STEREO/GROUP
[0dBu]
[0dBu]
LMONITOR OUT[+4dBu]RPHONES[3mW,40ohms]
[0dBu]
[0dBu]
[0dBu]
AUX SEND 1
AUX SEND 2
AUX SEND*
[-6dBu]
[-6dBu]
[-6dBu]
AUX SEND 1[+4dBu]
[+4dBu]
[+4dBu]
[0dBu]
[-6dBu]
CH Fader
MONI/PHONES[-16dBu]
AUX SEND 2 
LED Meter
LED Meter
A UX2AUX1
BA
INV
SUMSUM
34
SUMSUM
AUX SEND *
AUX*
1-2/3-4
MONITOR OUT [+4dBu]PHONES [3mW @ 40ohms]
MONI/PHONES
[Nominal:-16dB]
ST Master
[Nominal:-10dB] ST OUT [+4dBu]
GROUP OUT [+4dBu]
GROUP Fader
[Nominal:-10dB]
Clip Level
Clip Level
Clip Level
Clip Level
REC OUT  [-7.8dBu]
MONITOR MIX
MIC[-60 to -16dBu]LINE
INSERT
I/O[-34 to +10dBu]
[0dBu]
CH INPUT(CH1 to 8)
MIC[-60 to -16dBu]
(CH9/10, 11/12)
ST CH INPUT
HA
[16 to 60dB]GAIN TrimHA
[-34 to +10dBu]
[-34 to +10dBu]LINE R LINE L/MONO
TH+GAINCOMP
CH1 to 6
CH7 to 8
RE
+48V
PHANTOM
RE
PEAK3-Stage EQMid f
[0dBu]
HA[0dBu]
[6 to 50dB]GAIN Trim
HA RE
PEAK
[0dBu]
3-Stage EQ3-Stage EQ
L
ST CH INPUT
(CH13/14, 15/16)
[-10dBu]
RR
L/MONO
RETURN
[+4dBu]
HA
[0dBu]
[0dBu]
3-Stage EQ3-Stage EQLo
[0dBu]
HA
YE ON
[0dBu]
YE
YE ON[0dBu]
[-10dBu]
BA
[0dBu]
PRE
PA N
ST
G1–2
G3–4[0dBu]
[0dBu]
[0dBu] [0dBu]
[-6dBu]
[-6dBu]
[-6dBu]
+15V
PFLST
G1–2[0dBu]G3–4[0dBu]
[-6dBu]
CH Fader
[0dBu]
PRE
A
UX 1AUX 2
A UX*
[-6dBu]
[-6dBu]PFL
+15V
Same as CH9/10
[-6dBu]
ST
A UX 2
[-14dBu]
AUX 1
[-14dBu]
TO  ST/TO MONITOR
2TR IN
[-6dBu]
AUX1
A UX2
A UX*
STEREO L
STEREO R GROUP 1
GROUP 2
GROUP 3
GROUP 4
PFL L
PFL R
PFL CTRL
[0dBu] [0dBu]
[0dBu]
[-10dBu]
[-10dBu]
[-10dBV]
[-7.8dBu]
SUMSUMSUM
HPF
+20dBu +30dBu
0dBu
+10dBu
-20dBu -10dBu
-30dBu
+20dBu +30dBu
0dBu
+10dBu
-20dBu -10dBu
-40dBu -30dBu
-60dBu -50dBu
MODEL
MG166C AUX 3 EFFECTAUX *MG166CX
A
UX SEND *1
[Nominal:-6dB] A
UX SEND *1 [+4dBu]
RETURN
2TR IN
[Nominal:-6dB]
CH AUX *1
[Nominal:-6dB]
ST CH AUX *1
[Nominal:-6dB]
RETURN [+4dBu]
[-7.8dBu]
2TR IN [-10dBV]
Clip Level
CH Level
ST CH Level
[Nominal:-10dB]
Clip Level
Clip Level
ST CH IN
[-10dBu]
Clip Level
ST CH IN LINE Gain:Min [+10dBu]
ST CH IN MIC Gain:Min [-16dBu]
ST CH IN LINE Gain:Max [-34dBu]
ST CH IN MIC Gain:Max [-60dBu]
CH IN LINE Gain:Min [+10dBu]
CH IN MIC Gain:Min [-16dBu]
CH IN LINE Gain:Max [-34dBu]
CH IN MIC Gain:Max [-60dBu]
SUMSUM
SUMSUM
BABABABABABA
SUMSUM
SUMSUM
DRDR
BABABA
INVINV
[-10dBu]
BAL/PAN
INVINV
ON
YE
PROGRAM (1–16)
PA RAMETER
ST[0dBu]G1–2[0dBu]G3–4[0dBu]
[-10dBu]
BABA
EFFECT RETURN
[-14dBu]
[-14dBu]
A
UX 1AUX 2
+15V
PFL
L out
R out
IN
DIGITAL
EFFECT (DSP)
FOOT SW
EFFECT ON/OFFonly MG166CX 
						

							
CANADAYamaha Canada Music Ltd.
135 Milner Avenue, Scarborough, Ontario,
M1S 3R1, Canada
T el: 416-298-1311
U .S.A.Yamaha Corporation of America 
6600 Orangethorpe Ave., Buena Park, Calif. 90620, 
U.S.A.
T el: 714-522-9011
MEXICOY amaha de México S.A. de C.V.
Calz. Javier Rojo Gómez #1149,
Col. Guadalupe del Moral
C.P. 09300, México, D.F., México
T el: 55-5804-0600 
BRAZILY amaha Musical do Brasil Ltda.
Rua Joaquim Floriano, 913 - 4 andar, Itaim Bibi, 
CEP 04534-013 Sao Paulo, SP. BRAZIL
T el: 011-3704-1377
ARGENTINAY amaha Music Latin America, S.A. 
Sucursal de Argentina
V iamonte 1145 Piso2-B 1053, 
Buenos Aires, Argentina
T el: 1-4371-7021
PA NAMA AND OTHER LATIN 
AMERICAN COUNTRIES/
CARIBBEAN COUNTRIES 
Y amaha Music Latin America, S.A.Torre Banco General, Piso 7, Urbanización Marbella, Calle 47 y Aquilino de la Guardia, 
Ciudad de Panamá, Panamá 
T el: +507-269-5311
THE UNITED KINGDOMY amaha-Kemble Music (U.K.) Ltd.
Sherbourne Drive, Tilbrook, Milton Keynes, 
MK7 8BL, England
T el: 01908-366700
GERMANYY amaha Music Central Europe GmbH
Siemensstraße 22-34, 25462 Rellingen, Germany
T el: 04101-3030
SWITZERLAND/LIECHTENSTEINY amaha Music Central Europe GmbH, 
Branch Switzerland
Seefeldstrasse 94, 8008 Zürich, Switzerland
T el: 01-383 3990
A USTRIAYamaha Music Central Europe GmbH, 
Branch Austria
Schleiergasse 20, A-1100 Wien, Austria
T el: 01-60203900
CZECH REPUBLIC/SLOVAKIA/
HUNGARY/SLOVENIA
Y amaha Music Central Europe GmbH, 
Branch Austria, CEE Department
Schleiergasse 20, A-1100 Wien, Austria 
T el: 01-602039025
POLANDY amaha Music Central Europe GmbH 
Sp.z. o.o. Oddzial w Polsce
ul. 17 Stycznia 56, PL-02-146 Warszawa, Poland
T el: 022-868-07-57
THE NETHERLANDS/
BELGIUM/LUXEMBOURG
Y amaha Music Central Europe GmbH, 
Branch Benelux 
Clarissenhof 5-b, 4133 AB Vianen, The Netherlands 
T el: 0347-358 040 
FRANCEY amaha Musique France 
BP 70-77312 Marne-la-Vallée Cedex 2, France
T el: 01-64-61-4000
ITALYY amaha Musica Italia S.P.A. 
Combo Division
V iale Italia 88, 20020 Lainate (Milano), Italy 
T el: 02-935-771
SPAIN/PORTUGALY amaha-Hazen Música, S.A.
Ctra. de la Coruna km. 17, 200, 28230 
Las Rozas (Madrid), Spain
T el: 91-639-8888
SWEDENY amaha Scandinavia AB
J. A. Wettergrens Gata 1
Box 30053
S-400 43 Göteborg, Sweden
T el: 031 89 34 00
DENMARKYS Copenhagen Liaison Office
Generatorvej 6A 
DK-2730 Herlev, Denmark
Tel: 44 92 49 00
NORWAYNorsk filial av Yamaha Scandinavia AB 
Grini Næringspark 1
N-1345 Østerås, Norway 
Tel: 67 16 77 70
O THER EUROPEAN COUNTRIESYamaha Music Central Europe GmbH
Siemensstraße 22-34, 25462 Rellingen, Germany
T el: +49-4101-3030
Y amaha Corporation, 
Asia-Pacific Music Marketing Group
Nakazawa-cho 10-1, Naka-ku, Hamamatsu, 
Japan 430-8650
T el: +81-53-460-2313
TURKEY/CYPRUSY amaha Music Central Europe GmbH
Siemensstraße 22-34, 25462 Rellingen, Germany
T el: 04101-3030
O THER COUNTRIESYamaha Music Gulf FZE
LOB 16-513, P.O.Box 17328, Jubel Ali, 
Dubai, United Arab Emirates
T el: +971-4-881-5868
THE PEOPLE’S REPUBLIC OF CHINAY amaha Music & Electronics (China) Co.,Ltd.
25/F., United Plaza, 1468 Nanjing Road (West),
Jingan, Shanghai, China
T el: 021-6247-2211
INDONESIAPT. Yamaha Music Indonesia (Distributor)
PT. Nusantik
Gedung Yamaha Music Center, Jalan Jend. Gatot 
Subroto Kav. 4, Jakarta 12930, Indonesia
Tel: 21-520-2577
K OREAYamaha Music Korea Ltd.
8F, 9F, Dongsung Bldg. 158-9 Samsung-Dong,  
Kangnam-Gu, Seoul, Korea
T el: 080-004-0022
MALAYSIAY amaha Music Malaysia, Sdn., Bhd.
Lot 8, Jalan Perbandaran, 47301 Kelana Jaya, 
Petaling Jaya, Selangor, Malaysia
T el: 3-78030900
SINGAPOREY amaha Music Asia Pte., Ltd.
#03-11 A-Z  Building
140 Paya Lebor Road, Singapore 409015
T el: 747-4374
T AIWANY amaha KHS Music Co., Ltd. 
3F, #6, Sec.2, Nan Jing E. Rd. Taipei.
T aiwan 104, R.O.C.
T el: 02-2511-8688
THAILANDSiam Music Yamaha Co., Ltd.
891/1 Siam Motors Building, 15-16 floor
Rama 1 road, Wangmai, Pathumwan
Bangkok 10330, Thailand
Tel: 02-215-2626
O THER ASIAN  COUNTRIES Yamaha Corporation,
Asia-Pacific Music Marketing Group
Nakazawa-cho 10-1, Naka-ku, Hamamatsu, 
Japan 430-8650
T el: +81-53-460-2317
A USTRALIAYamaha Music Australia Pty. Ltd.
Level 1, 99 Queensbridge Street, Southbank, 
V ictoria 3006, Australia
T el: 3-9693-5111
COUNTRIES AND TRUST 
TERRITORIES IN PACIFIC OCEAN
Y amaha Corporation,
Asia-Pacific Music Marketing Group
Nakazawa-cho 10-1, Naka-ku, Hamamatsu, 
Japan 430-8650
T el: +81-53-460-2313
NORTH AMERICA
CENTRAL & SOUTH AMERICA
EUROPE
AFRICA
MIDDLE EAST
ASIA
OCEANIA
HEAD OFFICEY amaha Corporation, Pro Audio & Digital Musical Instrument DivisionNakazawa-cho 10-1, Naka-ku, Hamamatsu, Japan 430-8650
Tel: +81-53-460-2441
P A17
For details of products, please contact your nearest Yamaha 
representative or the authorized distributor listed below.
Pour plus de détails sur les produits, veuillez-vous adresser à Yamaha ou 
au distributeur le plus proche de vous figurant dans la liste suivante.
Die Einzelheiten zu Produkten sind bei Ihrer unten aufgeführten 
Niederlassung und bei Yamaha Vertragshändlern in den jeweiligen 
Bestimmungsländern erhältlich.
P ara detalles sobre productos, contacte su tienda Yamaha más cercana 
o el distribuidor autorizado que se lista debajo. 
						

							
Yamaha Pro Audio global web site:
http://www.yamahaproaudio.com/
Y amaha Manual Library
http://www.yamaha.co.jp/manual/
U .R.G., Pro Audio & Digital Musical Instrument Division, Yamaha Corporation
© 2007 Yamaha Corporation
WJ74360   703POAP7.3-01A0 Printed in China