Yamaha EMX66M Manual Do Utilizador

Front and rear panel

1

Hi-Z, Low-Z input jacks
These are the input jacks for channels 1–4. 
By using the PAD switches (control panel 5) you 
can connect any of the jacks to a wide range of 
sources from mics to line level devices (synthesiz-
ers or rhythm boxes etc.). The Low-Z jacks can 
provide +15 V phantom power, allowing you to 
use condenser microphones.
Both Hi-Z and Low-Z are balanced, and are com-
patible with microphones of output impedance 
50–600

Ω

 or line level devices of 600

Ω

. The nom-

inal input level is –40 dB – –10 dB for the Hi-Z 
jacks, and –50 dB – –20 dB for the Low-Z jacks.
Pin connections for the Hi-Z and Low-Z jacks are 
as follows.

2

MIC, LINE, Super Hi-Z input jacks
These are the input jacks for channels 5–6. 
Microphones can be connected to the MIC jacks, 
and stereo line level devices (such as synthesizers 
or rhythm boxes) can be connected to the LINE 
jacks.
The MIC jacks are balanced, and are compatible 
with microphones of output impedance 50–
600

Ω

.

The LINE 1 & 2 

jacks are unbalanced, and are 

compatible with line level devices of 600

Ω

 output 

impedance. These two input jacks can be used 
simultaneously.
Nominal input level is –50 dB for the MIC jacks 
and –10 dB for the LINE jacks.
Super Hi-Z 1 & 2 jacks are unbalanced, can be 
used simultaneously, and their high input imped-
ance makes them ideal for use with instruments 
such as electric-acoustic guitar and electric bass. 
They can also be used with line-level sources, 
such as synthesizers and drum machines. Nomi-
nal input level is –30 dB.

3

Effect output jack (EFFECT OUT)
The input of an external effect such as a delay or 
echo can be connected to this jack.
The signal adjusted by the EFFECT control (con-
trol panel 3) of each channel will be sent to the 
EFFECT bus, and output from this jack.

The nominal output level and conforming

 

impedance are +4 dB/10 k

Ω

.

2

1

5

6

4

3

1

2

1

1

2

2

1

2

Pin 1: ground

Sleeve: ground

Pin 2: hot (+)

Tip: hot (+)

Pin 3: cold (–)

Ring: cold (–)

Note:   It is not possible to simultaneously use 
both the Hi-Z and Low-Z inputs of a given 
channel. For each channel, use only one of the 
inputs as appropriate for the input source.
Phantom power is switched on/off simulta-
neously for the Low-Z jacks of channels 1-4 and 
the MIC jacks of channels 5-6. For this reason, 
any devices other than condenser microphones 
must be connected to the Hi-Z or LINE jacks if 
the PHANTOM switch (control panel K) is on.

GND

R

S

T

+

-

GND

+

-

Note:   It is possible to simultaneously use both 
the MIC and LINE inputs for channel 5, and the 
MIC and Super Hi-Z inputs for channel 6.