Consists of the synth, power supply, 1/8" to 1/4" audio cable television, 2 mini patch cable televisions, and the handbook. This is the initial variation (i.e. Make 1) with the Curtis CEM3394 chip.

　　Fresh, just utilized a few times.

　　If you're looking for this, you most likely currently know what is and exactly what it does, but a little information from Vintage Synth:.

　　The Dark Energy is a single oscillator synth efficient in producing triangle, square/pulse or sawtooth waveforms. The square/pulse wave can be made use of on its own or in conjunction with the triangle or sawtooth waveforms. The triangle and sawtooth waveforms can also be used individually, however it's not possible to utilize triangle and sawtooth together.

　　The Dark Energy has two LFOs, both efficient in triangle or square waves. Each LFO has an array switch for low, medium or high frequency varieties, enabling for very slow-moving modulation, with traditional LFO settings, right up into the audio range (to about 5 kHz) permitting audio-rate frequency modulation. The synth's single ADSR envelope generator also has a variety switch, so the envelope can differ from snappy and extremely short to really long and gradually developing.

　　The VCO frequency can be modulated either by LFO1 or the envelope, whilst the constantly variable pulse-width can be modulated by LFO2 or the envelope. With the LFOs set in the audio range, interesting FM noises can be attained, however regrettably the LFO frequency can not track the keyboard. The VCA level can be increased so that drones can be produced, or it can be regulated by the envelope or LFO1, again with filter FM abilities with the LFO on the high setting.

　　The filter is a 24 dB/octave Curtis filter with VCO tracking, which can be set to off, half or full monitoring. The filter resonance can be shown up such that the filter self-oscillates, allowing a sine-wave noise to be blended in with the other waveforms. The tracking is not as precise as the VCO and it is not temperature compensated, but the sine tracks quite well over a number of octaves without adjustment.

　　The filter cut-off can be regulated either by the envelope or LFO2, the level control being labeled XFM for rapid frequency modulation. The control labeled LFM provides linear audio-rate frequency modulation of the VCF by the triangle waveform of the VCO permitting other rich noises.

　　The Dark Energy is a really capable little synth, able to produce relatively complex sounds that belie its single oscillator nature and delivering quite a punch in a really little bundle. It can produce husky bass-lines, classic-sounding leads or more aggressive ones, plus intriguing, gritty FM-based effects and noises.

　　And there the tale may end, were it not for the patch points that embellish all-time low of the top panel and the back panel. These 1/8 inch sockets allow the Dark Energy to interface with other equipment by means of 1V/octave control voltages.

　　The Dark Energy has actually been described as a "gateway medicine" into the world of modular synthesis!