EMX88S/EMX68S

1

The Owner’s Manual Revisions

Thank you for purchasing the Yamaha EMX88S/EMX68S Powered Mixer. Parts of the EMX88S, EMX68S owner’s manual have been
revised. Please refer to the following revisions rather than the corresponding sections of the original owner’s manual.

P.12

■

MAIN section

F

Level Meter

This LED display shows the level of signals received at the
MAIN (STEREO) jack (input/output panel

7

).

■

MONITOR section

K

Level Meter

This LED display shows the level of signals received at the
MONITOR OUT jack (input/output panel
7
).

P.13

■

POWER AMP section

M

LIMITER indicator

If the output level of signals received
at the SPEAKERS output jacks (out-
put of the internal power amplifier)
reaches maximum, the indicator will
light.

P.30

■

Block and Level diagram

Power Amplifier output section level diagram (bottom right)

These plots show the nominal output and maximum output
levels of signals received at the SPEAKERS jacks. If the output
level is +4dB (Level Meter “0”), the internal power amplifier
will deliver 80W into a 4
Ω
load. If the output level is +11dB
(LIMITER indicator lights), the internal amplifier will deliver
a maximum of 400W into a 4
Ω
load. If you are using the
BRIDGE jack, the internal power amplifier will deliver 160W
into an 8
Ω
load with a +4dB signal and a maximum of 800W
into an 8
Ω
load with a +11dB signal.

E

Note:

The SPEAKERS 1 & 2 jacks (rear panel

1

) out-
put the signals received at the MAIN OUT jack via the
internal power amplifier. Check the output signal level
via the LIMITER indicator (
M
).
Note:
The SPEAKERS 1 & 2 jacks (rear panel
1
) out-
put the signals received at the MONITOR OUT jack via
the internal power amplifier. Check the output signal
level via the LIMITER indicator (
M
).
Caution:
If the LIMITER indicator flashes continuous-
ly, the internal power amplifier section is being exces-
sively overloaded and may malfunction. Reduce the
output level at the Master controls (
EJ
) below the lev-
el that the indicator flashes only briefly on the highest
transient peaks.
F
K
M
+30dB
+20dB
+10dB
0dB
PA
+11dB
+4dB
SPEAKERS OUT
MAXIMUM OUTPUT [400W/4Ω]
NOMINAL OUTPUT [80W/4Ω]