The Spectral Audio Neptune 2 Analog Synthesizer

http://www.youtube.com/watch?v=-u11qsV2yTk

This is a demo of the Spectral Audio Neptune 2 synthesizer, a very rare vintage rack-mount analog synth.

Features:

Voltage Controlled Oscillator 1 and 2:

  • Precise temperature stable Sawtooth and Rectangular Waves
  • 4 Octave Range Switch for Osc2
  • Ring Modulation Sync for Osc 2
  • External Signal Input for Osc 2
  • White Noise Generator
  • Spectrum from 0 Hz (DC) to 100kHz
  • True analog random noise, no digital shift register noise
  • Slide Time from 0 sec to 10 sec, Switch able by MIDI Controller 65 (Portamento)

Voltage Controlled Oscillator 3 / LFO:

  • Osc 3 can be switched between LFO (slow) and Oscillator Modus (fast)
  • 5 Shapes Sawtooth, Triangular, Rectangular, Random and Noise.
  • Osc 2 can also be a Modulation Source; through this also external Signals can be a Modulation Source.
  • Freerun Button keeps Osc 3 free of the CV

LFO

  • MIDI Clock Sync
  • 4 Modulation targets: Osc 1 and 2, Cutoff and Mixer Blue led

Voltage Controlled Filter:

  • 24 dB precision cascade Filter with Highpass and Lowpass Modes
  • Self resonant
  • Keyfollow switch 0% – 50% – 100%

The two Filter and VCA Envelopes:

  • Complete and very fast ADSR Envelopes with Attack, Decay and Release times in the Range of 5 millisec to 20 sec
  • For the Filter with Positive or Negative Modulation Gate led

Effects:

  • Distortion and Fuzzer
  • Effect Switch Effect level potentiometer from no effect to max

VCA and Volume:

  • Volume potentiometer
  • Low noise and low distortion VCA

Power: Power on switch Power on led

MIDI:

  • 5 Octave Range precise MIDI to CV Converter
  • MIDI controlled Cutoff (#2), Modulation (#1) and Portamento (#65) Receive Sustain (#64) and Pitch bend instruction

Filter

  • Velocity Sensitive Filter dynamic operation Re-trigger function
  • Filter TB303 Velocity mode
  • Highest or last note priority CV and Gate In/Output (switch able)

General:

  • Pure Analogue Technology
  • 2 Unit Rack mount Enclosure
  • Anodized colored 3mm Front Panel

Spectral Audio Neptune 2 Resources:

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