Behringer ABACUS - ABACUS Controls; CHANNEL 1 CV INPUT; CHANNEL 1 TRIGGER INPUT; CHANNEL 1 RISE TIME

10 11Quick Start Guide
ABACUS
ABACUS Controls
(1) CHANNEL 1 CV INPUT –
Accepts variable voltages in the
range +/- 10 V for processing
by Channel 1. If no voltage is
present the Abacus will use
a self-generated voltage of
approximately +10 V.
(2) CHANNEL 1 TRIGGER INPUT –
Accepts any positive-going
gate or trigger above + 2.5 V.
Causes the Rise/Fall function to
be activated.
(3) CHANNEL 2 CV INPUT –
Accepts voltages in the range
+/- 10 V for attenuverting by
control 20.
(4) CHANNEL 3 CV INPUT –
Accepts voltages in the range
+/- 10 V for attenuverting by
control 21.
(5) CHANNEL 4 TRIGGER INPUT –
Accepts any positive-going
gate or trigger above + 2.5 V.
Causes the Rise/Fall function to
be activated.
(6) CHANNEL 4 CV INPUT –
Accepts variable voltages in the
range +/- 10 V for processing
by Channel 4. If no voltage is
present the Abacus will use
a self-generated voltage of
approximately +10 V.
(7) CHANNEL 1 RISE CV INPUT –
Allows CV control of the
Rise function, in conjunction
with control 8. Accepts voltages
in the range +/- 8 V. Positive
voltages increase the Rise time
until the maximum is achieved;
negative voltages decrease it
until it reaches minimum.
(8) CHANNEL 1 RISE TIME –
Use this control to set the
Rise time. See table below for
maximum times according
to dierent settings. Can be
modulated further by feeding a
CV to socket 7.
(9) CHANNEL 4 RISE TIME –
Use this control to set the
Rise time. See table below for
maximum times according
to dierent settings. Can be
modulated further by feeding
a CV to socket 10.
(10) CHANNEL 4 RISE CV INPUT –
Allows CV control of the
Rise function, in conjunction
with control 9. Accepts voltages
in the range +/- 8 V. Positive
voltages increase the Rise time
until the maximum is achieved;
negative voltages decrease it
until it reaches minimum.
(11) CHANNEL 1 BOTH CV INPUT –
Accepts a voltage in the range
+/- 8 V. A positive voltage will
exponentially decrease the
total Rise/Fall time, until the
minimum is reached; a negative
voltage exponentially increases
it until it reaches maximum.
(EN) Controls