The Doepfer Dark Energy II is a redesign of the Dark Energy I (discontinued because of an important component the CEM3394 being no longer available). The Dark Energy II is a monophonic stand-alone synthesizer with USB and Midi interface that allows for plenty of plug, play and tweak fun. Check out the Doepfer Website for full details and the video below for a demonstration of the kind of sounds you can get from the Dark Energy II.
Doepfer recently released the Dark Energy single VCO monophonic analog synth. It looks like a very compelling product and the audio demo sounds great. Very fun little package and the inclusion of USB and MIDI is handy.
“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.”