SURGE

• Synthesis method: Subtractive hybrid.
• Category-based patch browser.
• MPE support.

Oscillators:

• 3 oscillators per scene.
• 7 versatile oscillator algorithms: Classic, Wavetable, Window, Sine, FM2, FM3, S&H Noise, and audio input.
• Classic oscillator is a morphable pulse/saw/dual saw oscillator with a sub-oscillator and hard sync.
• FM2 and FM3 oscillators consist of a carrier and 2 or 3 modulators and various options.
• Most algorithms (except FM2, FM3 and Audio input) offer up to 16-voice unison at the oscillator level.
• Oscillator FM and ring modulation between oscillators 1-3 and 2-3.
• Noise generator with variable spectrum.

Filter Block:

• Two filter units in 8 different configurations.
• Feedback loop available in 7 of those configurations.
• Available filter algorithms: Lowpass (12 and 24 dB/oct, each with 3 variations), Lowpass 24 dB/oct (3 variations), Ladder Lowpass (6-24 dB/oct), Highpass (12 and 24 dB/oct, each with 3 variations), Bandpass (12 and 24 dB/oct, each with 3 variations), Notch (12 and 24 dB/oct, each with 2 variations), Comb (4 variations), S&H.
• Filters can self-oscillate (with excitation) and respond amazingly fast to cutoff frequency changes.
• Waveshaper (5 shapes).

Modulation:

• 12 LFO units available, 6 are per voice and 6 are global for the whole scene.
• DAHDSR envelope generators on every LFO.
• 7 deformable LFO waveforms + step sequencer.
• Fast and flexible modulation routing.

Effects:

• 8 effect units arranged as 2 inserts per scene, 2 sends and 2 master effects.
• 13 effect algorithms: EQ, Distortion, Conditioner (EQ, stereo image control and limiter), Frequency Shifter, Rotary Speaker, Ring Modulator, Vocoder, Chorus, Phaser, Flanger, Delay, Reverb 1, Reverb 2.