Exciton is a new virtual analogue VSTi synth from Japanese developers Groovecube Technologies. It costs $75 and is available as Windows and MacOS VSTi with an OSX AUi version planned. Go and grab the demo version and give it a try.

Specification:

• Synthesis
  • Subtractive Synthesis (physical modeling of an analog synthesizer).
  • Voices: 1 to 64(variable).
• Oscillator
  • 2 Oscillators (OCS1/OCS2).
  • Waveforms: Sine, Triangle, Sawtooth, Pulse(with PWM).
  • Modulation: 2 mods assignable from ENV1/ENV2/LFO1/LFO2.
• Mixer
  • Inputs: OSC1, OSC2, ring modulation, noise generator.
  • Noise generator with colour adjustment.
• Filter
  • Lowpass/Highpass, 6/12/18/24dB/Oct.
  • Resonance: Lowpass, Highpass(without 6dB/Oct).
  • Saturation: available for Lowpass 12/18/24/Oct, Saturation Level, Saturation Curve (3 types).
  • Modulation: 2 mods assignable from ENV1/ENV2/LFO1/LFO2.
• Amplifier
  • Modulation: selectable from ENV1/ENV2.
  • LFO modulation: selectable from LFO1/LFO2.
• Envelope
  • 2 envelopes (ENV1/ENV2), ADSR (Attack Time, Decay Time. Sustain Level, Release Time).
  • Attack Curve (3 types).
  • All parameters (without attack curve) can be dynamically controlled during voicing.
• LFO
  • 2 LFO's (LFO1/LFO2).
  • Waveforms: Sine, Triangle, Sawtooth, Square, Sample & Hold, Random.
  • Mono/Poly mode.
• Effect
  • Modulation delay, highcut/lowcut filters, overdrive.
• Others
  • Unison mode.
  • Portamento: available for both Poly/Unison.
  • Velocity Sens.: individually available for all modulations.
  • Programs: 128.