Jack Deville Electronics dark echo Manual

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Overview
The Dark Echo is a unique delay/echo effect featuring digital echo processing with an analog signal path
and analog support circuitry. Four external controls and one internal control are provided for the operator
to tune the effect to their unique preferences. The control operations are explained below:
dark echo
BLEND:
delayed (wet) signal with your clean (dry) signal.
Full CCW rotation mixes out the wet signal allowing only the dry signal to remain.
Full CW rotation mixes and equal amount of wet signal with the dry signal.
REPEATS:
Full CCW rotation will yield 1 echo.
Full CW rotation will yield a stronger echo signal than the dry signal resulting in
self-oscillation. The self-oscillation threshold lies at 3 o'clock.
TIME:
Full CCW rotation yields approximately 50ms between repeats.
Full CW rotation yields approximately 450ms between repeats.
SWAY:
changes the frequency and intensity of the modulation simultaneously.
Full CCW rotation eliminates the modulation effect. At lower settings, the modulation
speed is higher while the intensity is lower. As the control approaches full CW rotation,
the modulation speed decreases as the intensity increases.
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The blend knob allows you to mix in the desired amount of
The repeats knob controls the feedback of the echo circuit.
The time control affects the time duration between repeats.
Sway modulates the time control via a triangle wave. Rotating the control
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