The main features of the Octopus are:

• 2 independent sound generation modules (Oscillators and Sampler)
• 8 additive oscillators with each containing up to 32 harmonics
• Each oscillator's spectrum is fully-editable and has sample-analysis capability
• Additive oscillators can be configured for 8-oscillator FM synthesis
• Waveforms can be easily edited by the user and new waveforms can be created in seconds
• Matrix-FM with 8 oscillators, full cross-modulation, and adjustable feedback for any oscillator
• 8-slot sampler with adjustable keyboard range
• Sampler loads WAV/AIFF samples up to 24bit/192kHz
• 2 independent multimode filters with modulatable cutoff and resonance
• Filters are available as FM sources
• Up to 32 envelopes with up to 64 host-syncable segments, free-run, loop and adjustable slope (curve)
• Envelope matrix offers modulation of amplitude, mix, panning, pitch, frequency, phase of any oscillator and filter cutoff and resonance
• Graphical envelope editor with advanced editing capabilities
• Envelopes can be scaled to keyboard and velocity independently
• A stereo effects section containing 4 effects units including chorus, delay, reverb and a 4-band parametric equalizer
• Warm, tube-like distortion
• Full microtonal capabilities (TUN/Scala support)
• 2 sophisticated 32-step sequencers
• Unison and Glide
• 12-voice polyphony (CPU-dependent) with adjustable voice limit
• Fully recognizes Velocity, Aftertouch, Pitch bend, Modwheel and various other MIDI controllers
• Envelopes, oscillator waves, sequences, and complete sound programs can be saved to disk and loaded from disk