Behringer ABACUS Quick Start Guide - Page 6

ABACUS Controls

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10 ABACUS ABACUS Controls (EN) 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 Quick Start Guide 11 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 different 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 different 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.

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10
11
Quick 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 different 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 different 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