Specifications

MIC/LINE
INPUT
SECTION @
uro
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Balanced
XLR input
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For
unhland u*
pi.
1 ad
pin
3 hv€ L b bndg€d
LIN
E
6.35mm TRS input
Unbalan@d use of
mono 1/{"iack
plugs
TiP
=
Signal
Grcund/Shield
@
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@
r-ow
cur FTLTER swrrcH
@
e*r.r
This switch will roll
off
frequencies
below
75Hz
at an 18dB
per
octave slope. This
can be used to eliminate rumble
caused
by sensitive lectern
mics etc.
i.
i
@
err
The Pre Fader Listen
(PFL)
switch
is
used
to monitor the input signal
before the
channel fader. This can be switched
to
either the headphone/local monitor
output
or the master lelVright outputs
(see
master section)
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t
@
onrru
This is
the initial
gain
control for
each
input
and should be set to optimise
each
inputs level while
still leaving headroom
so the input signal does not reach clipping
level. This
gain
stage has a range from
+10d8 to +60d8.
EG SECTION
Balanced use ot
sterco l//1"
lack
plugs
Ring
=
-
Gound /Shisld
Tip
Ring
For onndton of balaned
ad
unbalaned
plugs,
dng and sleve
have b h bridgsd at ihe sters
plug
This mid range E0
control adiusts mid
range frequencies
and has a fixed 2
octave
bandwidth at 2.5kHz. This control
will
give
up to l5dB of boost or cut. The
centre
position
will
give
a flat response.
$
r-ow
This low frequency
shelf E0 control
adjusts
bass
frequencies
and will
give
up to 1 5dB of boost or cut
at 80H2. The
centre
position
will
give
a
flat response.
AUXILIARY
SECTION
@
uroH
This is
a shelf E0 filter that adjusts treble
frequency
levels and will
give
up to 15dB
of boost or cut at l2kHz. The centre
position
will
give
a flat response.
Aux
1 is a mono split of the channel
inpul
signal and is
post
E0 but
pre
the
channel
fader.
@
rosr
Aux 2 is a mono
split of the channel input
signal and is
post
E0
and
post
channel fader.
The
channel
pan
control is used to
posi-
tion
the channel signal in the stereo
field.
@
eenrc
r-ro
This
red LED illuminates when the
channel is
going
into overload
(clip)
@
r-evrr-
This
channel output fader adjusts the
level
of the channels signal before it
is sent to the master output buss.
PAGE 4
SM12
& SM16 OPERATION MANUAL