Yamaha EMX68s Manual Do Utilizador

Front and rear panel

1

Channel input jacks (Hi-Z, Low-Z) 
1–6 (EMX88S), 1–4 (EMX68S)
These are the input jacks for channels 
1–6 (EMX88S), 1–4 (EMX68S). 

By using the PAD switches (control panel 6) 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 from –40 dB to –10 dB for the 
Hi-Z jacks, and from –50 dB to –20 dB for the 
Low-Z jacks.

Pin connections for the Hi-Z and Low-Z jacks are 
as follows.

2

Super Hi-Z jacks
These two phone jacks are the input connectors 
for input channel 5–6 (EMX88S), 3–4 (EMX68S). 
They are unbalanced, can be used simulta-
neously, and their high input impedance makes 
them ideal for use with instruments such as elec-
tric-acoustic guitar and electric bass. They can 
also be used with line-level sources, such as syn-
thesizers and drum machines.

3

Channel input jacks (MIC/LINE) 
7–8 (EMX88S), 5–5 (EMX68S)
These are the input jacks for channels 
7–8 (EMX88S), 5–6 (EMX68S). 

Connect microphones to the MIC jacks. Connect 
line-level devices, such as synthesizers to LINE L 
(MONO)/R jacks if the devices are stereo sound 
sources. Use the LINE L (MONO) jack if the 
devices are monaural sound sources. The MIC 
jacks can provide +15 V phantom power, allow-
ing you to use condenser microphones.

The MIC jacks are balanced, and are compatible 
with microphones of output impedance 50–
600

Ω

. 

The LINE jacks are unbalanced, and are compati-
ble with line level devices of 600

Ω

 output imped-

ance. Nominal input level is –50 dB for the MIC 
jacks and –10 dB for the LINE jacks.

2

1

6

5

7

3

4

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 in simulta-
neously for channels 1–8 (EMX88S), 1–6 
(EMX68S). For this reason, devices which do 
not require phantom power must be connected 
to the Hi-Z or LINE jacks if the PHANTOM 
switch (control panel L) is on.

GND

R

S

T

+

-

GND

+

-

Note:   The MIC and LINE inputs for channel 
7 (EMX88S), 5 (EMX68S) can be used simulta-
neously but their levels cannot be adjusted sep-
arately (Same for channel 8 (EMX88S), 
6 (EMX68S).)