Page
4
CONTROLS
Like
the
MP
‐
1,
the
MP
‐
1
‐
CHANNEL
has
two
controls,
OD1
and
OD2,
to
set
the
drive
level
of
the
first
two
stages
and
the
following
stages
3
and
4.
With
this
flexibility,
the
guitarist
can
not
only
set
the
amount
of
distortion,
but
control
the
level
of
even
and
odd
harmonic
distortion.
Even
harmonics
are
generated
by
clipping
one
side
of
the
guitar
signal
instead
of
both
the
top
and
bottom
sides
of
the
signal
for
odd
harmonic
distortion.
Even
harmonics
are
smooth
and
hollow,
while
odd
harmonics
are
crunchy,
harsh
and,
with
proper
setting
of
the
tone
stack,
“hairy.”
Try
some
of
the
settings
shown
below
to
help
get
you
familiar
with
how
the
controls
work.
There
is
one
INPUT
jack
and
one
OUTPUT
jack.
Keep
in
mind
that
the
MP
‐
1
‐
CHANNEL
is
a
stomp
box
and
runs
at
INSTRUMENT
levels,
not
LINE
levels.
The
VOICING
switch
sets
the
12AX7
gain
and
drive
equalization
for
CLEAN
and
DISTORTION
biasing.
The
MASTER
control
sets
the
level
of
the
signal
coming
from
the
four
gain
stages
of
the
12AX7s.
(There
are
2
stages
per
12AX7
vacuum
tube.)
The
tone
stack
(BASS,
MID,
TREBLE
and
PRESENCE)
is
an
active
filter
which
means
it
can
cut
AND
boost
the
signal.
When
all
the
tone
stack
controls
are
set
to
12:30
o’clock,
the
frequency
response
is
“flat”
–
no
boost
or
cut.
There
is
a
difference
between
the
MID
controls
of
the
original
MP
‐
1
and
the
MP
‐
1
‐
CHANNEL.
ADA
increased
the
range
of
the
MID
control
in
the
MP
‐
1
‐
CHANNEL
so
modern
guitar
players
can
get
a
radical
“scoop”
of
the
mid
frequencies.
The
amount
of
MID
boost
has
also
been
increased
so
players
can
get
a
“low
‐
power
combo
with
a
10
‐
inch
speaker”
sound
for
fuzzy
comping
and
soloing.
Summary of Contents for MP-1-CHANNEL
Page 1: ...Page 1 ADA MP 1 CHANNEL User Manual...
Page 14: ...Page 14 DISTORTION VOICINGS 1 7 1 80s OVERDRIVE 2 70s ROCK...
Page 15: ...Page 15 3 MODERN SCOOP 4 MODERN MID BOOST...
Page 16: ...Page 16 5 SMOOTH LEAD 6 NU METAL...
Page 17: ...Page 17 7 THRASH...
Page 18: ...Page 18 CLEAN VOICINGS 8 11 8 SINGLE COIL CLEAN 9 CRUSTY TWANG...
Page 19: ...Page 19 10 FUNK 11 JAZZ...
