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Doepfer | Dark Energy II
The lack of availability of the Curtis CEM3394 complete-synthesizer-voice-on-a-chip led to the Dark Energy's demise, announced in February 2012. Instead of discontinuation, Doepfer sourced new chip designs and released the Dark Energy II. The new model looks almost identical to the original on the surface. But Doepfer did a lot of redesigning under the hood.
Gone is the triangle waveform, replaced by an inverse sawtooth and the filter is a 12 dB/octave multi-mode affair (instead of the 24 dB lowpass of the Dark Energy I), continuously variable from lowpass, through notch and highpass to bandpass.
The filter mode knob replaces the linear FM control found on the original Dark Energy and the XFM control on the II allows for positive or negative envelope/LFO control of the filter cut-off. The VCA has an exponential scale instead of the combined linear/exponential scale of Dark Energy I.
The sound of the Dark Energy II clearly differs from the Dark Energy I (mainly because of the redesigned filter) with a more punchy and tighter sound.
|Model||Dark Energy II|
|LFO||2 LFOs, triangle/square waveforms, capable of audio-rate modulation|
|Engine Detailed||1 VCO Waveforms - saw, inverted saw, square/pulse with PWM|
|Filter (VCF)||24 dB/oct lowpass, continuously variable lowpass, notch, highpass, bandpass|
|Envelope (VCA)||1 VCA, 1 ADSR envelope with mod to VCO, PW, VCF cutoff and VCA|
|Sequencer||Six note memory, direction is in the order the notes were entered|
|Midi||I (DIN and USB)|
|CV-gate||4 CV 1 Gate|
|Produced:||2012 - 2012|
|Legend:||Obvious||Y: Yes, N: No, N/A: Not Applicable|
|VCO||Voltage Controlled Oscillator||DCO||Digital Controlled Oscillator|
|LFO||Low Frequency Oscillator||Sub||Sub Oscillator|
|VCF||Voltage Controlled Filter||VCA||Voltage Controlled Amplifier|
|Velocity||As with a piano, the harder you hit a key, the louder the sound, unlike most organs which always produce the same loudness no matter how hard you hit a key.||Aftertouch||Pressing a key after you activated it. Channel Aftertouch, no matter which key, it will send a Channel message. Poly Aftertouch, sends the pressure per key instead of the whole channel.|
|Values for OSC, LFO, Filter, Envelope are per voice unless stated otherwise.|