DOEPFER
DARK ENERGY
Monophic Analog Synthesizer
with USB and Midi Interface
Reports for download on our website:
KEYS 9/2009 BEAT 9/2009 Synthesizer
Magazin Nr. 15
sonicstate.com
(online review)
Dark Energy is a monophonic stand-alone synthesizer with
USB and Midi interface. The sound generation and all
modulation sources are 100% analog, only the USB/Midi
interface contains digital components. Dark Energy is built
into a rugged black metal case with wooden side plates.
High quality potentiometers with metal shafts are used and
each potentiometer is fixed to the case (no wobbly shafts
and knobs). The distance between the controls is a bit wider
compared to A-100 modules and knobs with vintage look
are used.
Dark Energy contains these components:
Triangle based VCO core
manual tune control
range switch -1/0/+1octave
frequency range about 10Hz ... 12kHz
FM (frequency modulation) control with modulation
source switch (LFO1 / off / ADSR)
manual pulsewidth control for rectangle waveform
PWM control with modulation source switch (LFO2 / off /
ADSR)
waveform switch (sawtooth / off / triangle)
external CV input for VCO frequency (1V/octave)
external CV input for external PWM of the rectangle
24 dB low pass
~ 12 octaves frequency range
manual frequency control
tracking switch half - off - full
XM: exponential FM (frequency modulation) control with
modulation source switch (LFO2 / off / ADSR)
LM: linear FM (frequency modulation) control to modulate
the VCF by the triangle of the VCO in a (!) manner
manual resonance control (up to self oscillation)
external audio input
external CV input for filter frequency
1V/octave tracking for usage of the VCF as a sine wave
oscillator over some octaves
VCO
VCF
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linear
VCA
LFO1 and LFO2
ADSR
USB/Midi-Interface
In/Outputs
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manual amplitude control (initial gain)
AM (amplitude modulation) control with modulation source
switch (LFO1 / off / ADSR)
external CV input for VCA amplitude
manual frequency control
waveform switch (triangle / off / rectangle)
range switch (low, audio, medium)
LED display (dual green/red color for positive/negative
share of the signal)
the LFO1 signal is available as an additional socket (to
use the LFO1 signal for external modules)
manual controls for Attack, Decay, Sustain, Release
range switch (long, short, medium)
blue LED display
ADSR signal is available as an additional socket (to use
the ADSR signal for external modules)
External Gate input
Midi channel and reference note are adjusted by means of
a learn button and LED at the rear panel
The interface generates the gate signal that controls the
envelope generator and four analog control voltages: CV1
is used to control the pitch of the VCO, CV2...CV4 can be
patched and are controlled via p
freely assignable Midi controller
All CVs and the gate signal are also available at the rear
panel as jack sockets
cascading of several units via internal Midi Out/Midi In
connection (details on our website)
CV In VCO frequency (1V/oct)
CV In VCO pulsewidth (about 5V range for full scale)
CV In VCF frequency (~ 1V/oct)
CV In VCA amplitude (0...+5V)
Gate In (0/+5...12V)
External Audio In (typ. 1Vss without distortion)
inverted LFO1 Out (~ -2.5 ... +2.5V)
Envelope Out (~ 0 ... +6V)
Audio Out (typ. 1Vss)
itchbend, Velocity/Volume
and a
Doepfer Musikelektronik GmbH
Geigerstr. 13 82166 Graefelfing/Germany
sales@doepfer.de
www.doepfer.com
phone 49-89-89809510
fax 49-89-89809511
(4 Seiten)
(32 Seiten)
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