DOEPFER Dark Energy User Manual

8
Dark EnerGy
DOEPFER
Overview
2. Overiew
DarkEnergy‘sarchitecturetiesupwithaclassicmonophonicmodularsynthesizer.It‘ssignalpathsare
wiredinternally,thusDarkEnergyisverycompactandeasytouse.Themostimportandmodulationpaths
canbesetviatoggleswitches,additionalsocketsdelivercontrolvoltagesandallowtheconnectionof
externalmodulationsources.TheinternalMIDI/USBinterfaceallowstheeasyusewithinaMIDIsetup.
DarkEnergycanalsobeusedasaMIDItoCV/Gateinterface.
Tune
Res
ADSR
Range
Shape
Shape
Shape
Range
Range
LFO1 LFO2 LFO1
LFO2
up half low
high
high
high
low
low
ADSR ADSR ADSR
ADSR
down full
medium
Attack
Decay
Sustain
Release
medium
medium
Frequ.
Frequ.
Inputs Outputs
GateVCA AVCF FVCO PWVCO F Ext.
Audio
LFO1 Envelope Audio
VCO VCF
Envelope
VCA
LFO1
LFO2
o o
o
o
o
o
o
o
Frequ. Amp
AMXFMFM
PW
PWM
LFM
Octave
Source Source Source
Source
Track
DARK ENERGY DOEPFER
0
4
5
1
3
2
10
9
7
8
0
4
5
1
3
2
10
9
7
0
4
5
1
3
2
10
9
7
0
4
5
1
3
2
10
9
7
0
4
5
1
3
10
9
7
0
4
5
1
3
10
9
7
0
4
5
1
3
10
9
7
8
0
4
5
1
3
10
9
7
8
0
4
1
3
10
9
7
8
0
4
5
1
3
10
9
7
8
0
4
1
3
10
9
7
8
0
4
1
3
10
9
7
8
0
1
3
2
10
9
8
0
4
1
3
2
10
6
9
7
8
0
4
1
3
2
10
6
9
7
8
0
4
1
3
2
10
6
9
7
8
triangle waveform based VCO
- tuning knob
- range switch -1 / 0 / +1 octave
- FM (frequency modulation) knob with selectable
modulationsource (LFO1 / off / ADSR)
- pulswidth knob for squarewave
- PWM (pulswidth modulation) knob with selectable
modulationsource (LFO1 / off / ADSR)
- waveform switch (saw / off / triangle)
The sum of the squarewave signal and the waveform
selected with the waveform switch is fed into the audio
in of the filter module (to disable the squarewave both
PW- and PWM-knobs have to be turned fully counter-
clockwise).
VCO CV inputs
- VCO frequency (1V/octave)
- pulswidth of squarewave
24 dB lowpass VCF
- cutoff knob (freq.)
- tracking switch half / off / full
(internally connected to the VCO control
voltage)
- XM: exponential frequency modulation
knob with selectable modulationsource
(LFO1 / off / ADSR)
- LM: linear frequency modulation knob;
modulationsource is the VCO‘s
trianglewave (resp. the VCF gets linear
FM from the VCO with adjustable
intensity)
- resonance knob (up to selfoscillation)
audio input
(the connected signal is
mixed into the VCF input)
VCF CV input
- VCF frequency (1V/octave)
VCA
- amplitude knob
- AM (amplitude modulation) knob
with selectable modulationsource
(LFO1 / off / ADSR)
VCA CV input
- VCA amplitude
LFO1 and LFO2
- frequency knobs
- waveform switches (triangle / off /
square)
- range switches: low (up to several
minutes per cycle) / audio (up to
5 kHz) / medium (normal LFO range
from some seconds up to several
10th hertz)
- dual LEDs yellow/red show positive
and negative halfs of the LFO waves
LFO1 CV output
(inverted)
ADSR
- knobs for Attack,
Decay, Sustain and
Release
- range switch long / short /
medium
- blue LED for envelope
activity
ADSR CV output
gate input
audio output

DOEPFER Dark Energy Specifications

General

LFO	1 LFO with triangle and square waveforms
Envelope	1 ADSR Envelope Generator
Connectivity	MIDI In, CV/Gate In/Out
Type	Analog Synthesizer
Oscillator	1 VCO with sawtooth, pulse, and triangle waveforms
Filter	24 dB low-pass filter
Audio Output	1 mono audio output
Power Supply	External Power Supply