.
Lowpass Filter Manual cutoff frequency control for the 12db lowpass filter at the end of the D
stage. This control knob may be useful to reduce noise and for sound control.
Delay Time CV Input 1 manual control for the signal level of a delay time CV (Control Voltage)
signal applied on socket T Cvin 1 .
Feedback CV Input manual control Adjusts the level of feedback CV (Control Voltage) for a
feedback CV signal input applied on socket Feedback CVin .
Feedback: Manual control of feedback. The delay output is fed back into the D input via an
internal VCA (Voltage Controlled Amplifier). The feedback VCA can be manually controlled with
this knob and/or by adding a control voltage to the feedback CV input . From 5-6 on the
scale the delay begins to self-oscillate.
Delay Time CV Inversion Switch Inverts the incoming signal on socket 'T CVin 1' .
Note:
If you are using a delay time CV input (non inverted) for delay time/ frequency modulation,
the feedback sustain may be linearized for different delay times by splitting the T CVin signal
and putting a small amount of this CV into the Feedback CV input. The output level of the Ds
is not constant over the whole delay time range, though the feedback sustain is not linear for
different delay times; e.g., with the same setting of feedback controls, for a short delay time the
tone fades away; while a longer delay time (or lower frequency) will cause a feedback oscillation.
y increasing the feedback level for higher frequencies by adding a proportional CV to this input
this problem can be minimized.
Feedback CV Input Control voltage input for the feedback amplification. Its amount can be
adjusted by using the Feedback CV in knob . A positive input voltage will increase the
feedback; a negative voltage will – in combination with manual control knob 'Feedback' -
attenuate or mute the feedback.
Delay Output This 2nd delay output is behind the internal feedback VCA. Unlike output 'Mix'
,
the output level is directly dependent of the settings of knob 'feedback' and/or the input on
socket 'feedback CV in' ; e.g. if the 'feedback' knob is set on '0' on scale (fully ccw), there
will be no output signal. This muting option can be useful to reduce noise and/or for sound
modelling.
Delay Time CV Input1 Control voltage input for delay time (feedback frequency). Polarity of the
incoming signal can be inverted with 'Inv.' switch ; its amount is adjustable by using poti
'T CVin 1' .
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