Spire Synthesizer - a combination of the best features of software and hardware synthesizers. Spire is a software-based polyphonic synthesizer that combines a powerful audio modulation engine with a flexible architecture, and a graphical interface that provides unparalleled usability. Spire is the embodiment of the best features, both software and hardware synthesizers. ANALOG / DIGITAL Excellence Spire Synthesizer - a combination of the best features of software and hardware synthesizers. UNIVERSAL GENERATORS 4 multimode polymorphic oscillators Classic, Noise, FM, AMSync, SawPWM, HardFM, Vowel. UNISON UNISON ENGINE 9x unison voices per oscillator Distribute unison voices across chords and octaves Capable of simulating various types of unisons such as supersaw, hypersaw. SUPERIOR SOUND FILTERS 2 multi-mode filters with analog and digital filtering types Perfecto, Infecto, Acido, Scorpio, Combo, Shaper. HIGH QUALITY BUILT- IN PROCESSOR FX Shaper/Decimator, Phaser/Vowel, Chorus/Flanger, Delay, Reverb. INCREDIBLY FLEXIBLE MODULATION ARCHITECTURE 4x Macros, 4x Envelopes, 4x LFOs with morph shapes, 15 Matrix slots, each equipped with 2x sources and 4x targets. 2 steppers, arpeggiator Surprisingly comfortable and fun to use. POWER YOUR SOUNDS POWERFUL with X-Comp (multi-band compressor) and 3-band EQ.