Owner's Manual

Input
Pressing
INPUT steps through each of the three inputs, as indi
ca
ted
by
the corresponding LEOs. When the Mic
LED
is lit, the
microphone input is active etc.
An
XLR
input
for
a microphone, as
well
as both
XLR
and
TRS
1/4
..
inputs
for
line-level
sources,
can
be
found
on
the
rear
panel. A
TS
1/4
..
input
for
an
instrument
[01}
is available
on
the
front
panel.
Mic
input
gain
With the Mic input selected, the user has access to the
full
gain range in
10dB
steps
from
OdB
to
+60dB
[yellow legend}. The gain
range is split between
two
gain modes depending upon the status of the
30-60
switch.
Mode
1:
Mic Gain Range
0-30
With the
30-60
switch off, the stepped gain
dial
operates over a gain range of
OdB
to
+30dB,
the level of gain chosen being indicated
on
the
front
panel
by
the
outer
arc of yellow numbers around the gain knob.
Mode
2:
Mic Gain Range
30-60
With the
30-60
switch on [illuminated). the stepped gain dial operates over a gain range of
30dB
to
60dB,
the level of gain chosen
being indicated on the
front
panel
by
the outer arc of yellow numbers around the gain knob.
An
additional20dB of gain can
be
applied to the signal
after
the
mic/line
stepped Gain knob using the smooth rotation Tr im knob.
[See the 'Trim·
control
text below
for
a
full
explanation.)
Line
input
gain
With the line input selected, the user has access to gain settings ranging
from
-20dB
to+
10dB,
indicated
on
the
front
panel
by
the
arc
of white
numbers
around the stepped gain knob. The
30-60
switch is inactive when the line input is selected, as the gain ra nge
for
line- level inputs is restricted to
-20dB
to
+10dB
in
10dB
steps.
An
additional20dB of gain can
be
ap
pli
ed
to the signal after the
stepped
mic/line
gain knob using the smooth rotation Trim knob. [See the
··Trim·
control text below
for
a
full
explanation.)
Instrument input
gain
With the
instrument
input selected, gain is applied to the input signal
by
using the
I
nstrument
Gain dial, which
allows
+10dB
to
+40dB
of gain range. The level of gain chosen is indi
ca
ted
on
the front panel
by
the arc of
whit
e numb
ers
around the gain knob. This input
is suitable
for
high impedance sources such as
guitar
or
bass pickups [which may
be
connected directly
without
the need
for
an
external
01
box)
or
vintage synthesizers with high
imp
edance outputs.
Trim
The Trim
co
ntrol
provides additional variable gain of
OdB
to
+20dB
when mic
or
line inputs are selected. The level of
trim
chosen is
indicated on the
front
panel
by
the arc of white
numbers
around the
trim
knob. The
ad
ditional
20dB
of gain that can
be
appl
ied
to the
mic
or
line signal is very use
ful
for
two
reasons:
When high gain is required
Using
trim
in
conjunction
with
the mic gain of 60dB
gives a
total
of
up
to
BOdB
of
pre-amp
gain, making it v
ery
useful for getting good
digit
al
recording levels
from
very
low
output dynamic and ribbon microphones.
Gain adjustment during recording
Wh
en sm
all
amounts of gain
adjustment
are needed to c
orrect
performance level variations during recording, use the
trim
knob
rather
than the stepped mic
/lin
e gain knob, as s
wit
ching the
10dB
gain steps would be much too intrusive.
It
is therefore good
practice to
ap
ply some Trim gain before using the 10dB
stepped gain knob
to find the optimum recording level so that the Tr im
control can
be
used to gently add
or
take away gain later,
if
so required.
+48V
Pressing the +48V
sw
it
ch provides
ph
antom powe
r,
suitable
for
co
nd
enser microphones, to the re
ar
panel
XLR
microphone
conne
ctor
. If you are unsure
wh
ether you r microphone requires
ph
antom power,
refer
to i
ts
handbook, as
it
is possible to damage
some microphones [most notably ribbon microphones} by providing phantom power.
7