Yamaha Mg164 Owners Manual

Front & Rear Panels
MG16/4, MG12/4
21
8Level-Meter Signal Switches (ST-GROUP Toggle 
Switch and 2TR IN Switch)
These level-meter switches, together with the channel PFL
switches, select the signal that is sent through the
C-R/PHONES control to the C-R OUT jacks, the PHONES
jack, and the level meter.
The following illustration shows how the switch settings corre-
spond to the signal selection. 
1If the input channel’s PFL switch is on ( ), then only the
channel’s PFL output it sent to the C-R OUT jacks,...

Front & Rear Panels
MG16/4, MG12/4
22
1Channel Input jacks
•MIC jacks (MG16/4: CHs 1 to 8, 9/10, 11/12. MG12/4:
CHs 1 to 4, 5/6, 7/8)
These are balanced XLR-type microphone input jacks
(1:Ground; 2:Hot; 3:Cold).
•LINE jacks (MG16/4: CHs 1 to 8. MG12/4: CHs 1 to 4)
These are balanced TRS phone-type line input jacks (T: Hot;
R: Cold; S: Ground).
You can connect either balanced or unbalanced phone plugs
to these jacks.
Where an input channel provides both a MIC INPUT
jack and a LINE INPUT jack, you may use...

Front & Rear Panels
MG16/4, MG12/4
23
8RETURN L (MONO), R Jacks
These are unbalanced phone-type line input jacks. The signal
received by these jacks is sent to the Stereo bus and the AUX1
and AUX2 buses. These jacks are typically used to receive a
return signal from an external effector (reverb, delay, etc.).
These jacks can also be used as an auxiliary stereo
input. If you connect to the L(MONO) jack only, the
mixer will recognize the signal as monaural and will
propagate the identical signal on both L...

MG16/4, MG12/4
24
Setting Up
(1) Before connecting to microphones and instruments, be sure 
that all devices are turned off. Also be sure that all of the 
mixer’s channel faders and master control faders are set all the 
way down.
(2) For each connection, connect one end of the cable to the rele-
vant microphone or instrument and connect the other end to the 
appropriate LINE or MIC jack on the mixer. 
(LINE jacks on MG16/4: CHs 1 to 8; on MG12/4: 1 to 4. MIC 
jacks on MG16/4: CHs 1 to 8, 9/10, 11/12; on...

Setting Up
MG16/4, MG12/4
25
Sound Reinforcement for Live Performance
(      )
STAUX 1
(
PRE       )
ST
DI
DI
Microphones  Monitor Speakers
(Internal)
Power Amp
Effector
Synthesizer
EffectorBass
Guitar
CD, Cassette, or DAT 
Recorder
Microphones
HeadphonesGuitar
Main Speakers
(External)
Example of Speaker Arrangement 
Audience (External)Stage (Internal) Drums
CD Player
Power Amp
MG12-16_E.book  Page 25  Monday, May 26, 2003  1:14 PM 

Setting Up
MG16/4, MG12/4
26
Mounting the MG16/4
(1) Two metal rack-mount supports are screwed onto the unit. Use
a screwdriver to remove these supports.
(2) Turn the supports over, and fasten them into place again using
the same screws.
(3) Mount the unit into the rack, and fasten it into place.
If you wish you may move the left support to the
right side and the right support to the left side, as
shown in the drawing.
Do not install the mixer near power amps or other
heat-generating devices.
Mounting...

 
MG16/4, MG12/4 
27 
Appendix 
  
General Specifications 
Where 0 dBu = 0.775 V and 0 dBV = 1 V 
1
 
Measured with 12.7 kHz, –6 dB/oct. low pass filter (equivalent to 20 kHz, –  
∞  
 filter).
(CH MIC INPUT to ST, GROUP OUT/AUX, EFFECT SEND) 
2
 
Turning PAN/BAL to left or right. 
3
 
Shelving turnover/rolloff frequency: 3 dB before maximum cut or boost. 
 Specifications 
Frequency Characteristics (ST OUT) 20 Hz–20 kHz +1 dB, –3 dB @+4 dBu, 600  
Ω  
(with gain control at minimum level)
Total Harmonic...

Appendix
MG16/4, MG12/4
28
Input Specifications
Where 0 dBu = 0.775 V and 0 dBV= 1 V
* Input sensitivity: the lowest level that will produce the nominal output level when the unit is set to maximum gain.
Output Specifications
Where 0 dBu = 0.775 V and 0 dBV= 1 V
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...

Appendix
MG16/4, MG12/4
29
MG16/4
MG12/4
Dimensional Diagrams
393
31.5
309.6 D 416.6
H 108
101.3 3
W 423
428
27.5
480
When mounted on rack
317.4
D 416.6
325.6
102.62 H 108W 322
480 322
When mounted on rack
MG12-16_E.book  Page 29  Monday, May 26, 2003  1:14 PM 

Appendix
MG16/4, MG12/4
30
Block Diagram and Level Diagram
MG12-16_E.book  Page 30  Monday, May 26, 2003  1:14 PM