Operating instructions

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1. lnsert
the
microphone
plug
into the
MIC
jack
on
the
front
panel'
2.
Adjust the
level
of
microphone
sounds
with the
MIC MIXING
LEVEL
control.
3.
When
mixing
mic signals
with
other
program
sources
(records,
broadcasts
or tapes),
set the
SELECTOR
and/or
TAPE
MONITOR
sritch(es)
to the
source
you
want to
mix with
and then
turn the
VOLUME
control to
adjust the
level
of the
program
source
to
match with
the
level of
mic signals.
When using the
microphone
only
with
no mixing,
turn the
VOLUME
control
fully
counter-
clockwise.
o
When inserting
or removing
the
microphone
plug,
turn
the
MIC
MIXING
LEVEL
control
fully
counterclockwise
first.
About
microphones
It is
recommended
to
use a
high-impedance
('lOk!-}
-
50kf!)
micro-
phone,
although
a low-impedance
one
(6O0O)
will
be more
effective
if
you
wish
to
use it several
meters away
from the
unit.
lf using
a low-
impedance
one
with a
small
output
(such
as
a dynamic
type
low-
impedance
microphone),
you'll
need a
matching transformer
between
the
microphone
cord and the
unit's
MIC
jack.
Howling
while
using
a microPhone
Loud
oscillating
noise
may be
heard
from
your
speaker
systems
when
using a
microphone.
This is a
phenomenon
called
howling,
and
happens
because
the
sound
from
your
speakers
is fed back
to the
microphone
and
amplified
again,
repeating
the
process
infinitely.
lt is
more likely
to
take
plac€
in an acoustically
reflective
room especially
if
you
raise the
sound
volume.
It
can be avoided
either by
directing
or moving the
microphone
away
from the
speaker
systems.
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