Oberheim Xpander Owner's Manual

1
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SELECTING
MODULATION
Adding a
Modulation Source
There can be six
modulation sources at
one
time to each
destination, one above
each of the
six Page
Modifier buttons. Choose the desired
source
in the Modulation
Source
section
(flashing led).
The
name of the selected modulation
source
will appear on the
display above
the
underline
Remember that
if you have selected
an LFO. Envelope,
Tracking Generator, or Ramp as a
modulation source,
the X
SELECT LED
will
prompt you to
choose
which
one.
The amount
of
modulation
is selected by
turning
the knob
below the name
of the source
on
the display,
or
by
pressing
the
button above the knob (Value
X) and
typing in
a
value (or
t
and -) with the X
SELECT buttons.
Pressing
the CLEAR button
will
set
the
amount
of modu-
lation
to
zero.
Changing a
Modulation Source
To change a
modulation
source, touch the button
underneath
the source that you
which
to
change.
That source
will become
underlined, and
you
can
now press
one of the
Modulation
Source
buttons to
change it.
Removing a
Modulation Source
To
remove
a
modulation
source, touch and hold the
button
underneath the
source that you
which to
delete. That
source
will
become
underlined. While
holding the button,
press the
CLEAR button
on the in the
Modulation Source
section,
and poof! the
modulation
will
disappear
OPTIONS
Quantized
Modulation
Different
effects can be
achieved
by
Quantizing
the
modulation.
Quantizing
causes
semitone
steps
instead
of
a
smooth
change
of
an
Envelope.
LFO.
Lever,
or other
modulation.
To
quantize a
modulation,
press the
button under
the
appropriate
amount
display
(Value X)
and press
the
QUANTIZE button
in
the
X Select
section.
A
"0"
will appear
in the
display to
indicate
quantization.
Positive
/Negative
Modulation
Modulation
sources can be
set
to add
(
-
)
or
subtract (-
)
from the
initial
value.
Multiple
Modulation
A
modulation source
can be directed to
particular destination
more than
once
for
more
range,
for example to
bend
notes farther
than the
minor sixth
normally
possible
with
MIDI
Lever 1 (see
MIDI
Controls in the
Master Page
section
for
more details
on
this
particular
application.)
Note that
the
control of the
modulation
amount
is
exponential, so
the
numbers
don't
exactly
add
up. The
higher
the
number, the
larger
the
amount of
change.
This enables
one
control
to be
used
for a coarse
range
(large
numbers) and
an additional
control used
for
a
fine
range
(small
numbers).
*- * *
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*>-' r/T—
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39
Xpandor
Owners Manual Creative
Input/The Xpa^dec
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Oberheim Xpander Specifications

General

Type	Analog Synthesizer
Polyphony	6 voices
Oscillators	2 VCOs per voice
Control	MIDI
Synthesis Type	Analog Subtractive
VCA	1 per voice
Memory	100 patches
Modulation	Extensive modulation matrix
Year Released	1984
Filters	Multi-mode filter per voice
Envelopes	3 per voice
Keyboard	No keyboard
Inputs	CV/Gate
Outputs	Individual voice outputs