Spire is a software polyphonic synthesizer that combines powerful sound engine modulation and flexible architecture, a graphical interface provides unparalleled usability. Spire is the embodiment of the best opportunities, both software and hardware synthesizers.

ANALOG / DIGITAL Superiority
Spire Synthesizer - the combination of best opportunities of software and hardware synthesizers.

VERSATILE OSCILLATORS

• 4x multimode polymorphing oscillators
• Classic, Noise, FM, AMSync, SawPWM, HardFM, Vowel.

UNIQUE UNISON ENGINE

• 9x unison voices on each oscillator
• Spread unison voices by chords and octaves
• Capable of imitating different types of unisons like supersaw, hypersaw.

SUPERB SOUNDING FILTERS

• 2x multimode filters with analogue and digital types of filtering
• Perfecto, Infecto, Acido, Scorpio, Combo, Shaper.

HIGH QUALITY BUILT IN FX PROCESSOR
Shaper/Decimator, Phaser/Vowel, Chorus/Flanger, Delay, Reverb.

INCREDIBLY FLEXIBLE MODULATION ARCHITECTURE

• 4x Macros, 4x Envelopes, 4x LFOs with morphing shapes,
• 15x Matrix slots each equipped with 2x sources and 4x targets.

2x STEPPERS, ARPEGGIATOR
Surprisingly user friendly and fun to use.

MAKE YOUR SOUNDS FATTER
with X­-Comp (Multiband Compressor) and 3-band EQ.

Changelog for Spire Synthesizer 1.5.19 - build 5343 (2025.09.22)

• Fixed automatic conversion of old soundbanks upon import
• Improved overall stability