Operation; Graphic Equalizer - Yamaha EM-300 Owner's Manual

ЕМ-ЗОО РА MIXER
The YAMAHA EM-300 PM MIXER with its
twelve input channels, two output channels
(stereo) and built-in power amplifier is extreme-
ly easy to use and operate. It is equipped with a
graphic equalizer, reverberation unit and moni-
tor circuit which extend the mixer's application
range from ordinary public address (PA) to
business uses.
Please read through these instructions so that
you will know exactly how to use the EM-300
in accordance with the intended application.
CONTENTS
ВЕРОНЕ ОРЕВАТІОМ.................... 1
BLOCK DIAGRAM ...................... 2
CONTROL PANEL OPERATION ............ 3
CONNECTION FIGURE................... 5
BACK PANEL OPERATION................ 6
INPUT/OUTPUT SPECIFICATIONS........... 8
CHARACTERISTICS FIGURES.............. 9
CABLE CONNECTIONS................... 9
BEFORE OPERATION
Check the following points before operating your mixer.
€ Installation location
Wherever possible, avoid installing the mixer in a
€ Do not set the controls to the following positions.
INPUT LEVEL controls —50 for all channels
Channel faders Max. for all channels
location which is exposed to direct sunlight, or a
great deal of humidity, dust or vibration.
Do not block the ventilation holes in the top, bottom
and back panels of the mixer since they are designed
to dissipate the heat which is generated internally.
Connections
Make absolutely sure that you use the commercially
available power line voltage to power the mixer.
Refer to page 5 for the connections and then pro-
ceed to connect properly. When performing the con-
nections, make absolutely sure that the power switch
is set to OFF..
Speaker impedance
The acceptable speaker load is from 8 to 16 ohms for
USA and Canadian models and from 4 to 16 for
general models. Do not connect a speaker system
with a total impedance of less than the minimum
above rating.
LOW-EQ, HIGH-EQ controls| Max. for all channels
GRAPHIC EQUALIZER
[Master faders [Max |
Although these positions are not the ones usually
used for normal use, bear in mind that if you inad-
vertently set the controls to the positions given above,
the conditions governing the equipment connected to
the input connectors and the load speakers may result
in damage to the speakers.
Maintenance
The color of the mixer panels may undergo change if
they are cleaned with a paint thinner or similar liquid.
Always use a soft dry cloth to wipe off any dirt on
the panels.