Introducing the Sequential Fourm – Compact Power, Iconic Tone Reimagined

The Sequential Fourm is not just another synthesizer – it’s a reimagined classic that combines the warmth of vintage analog with modern expressive control. Compact, intuitive, and sonically rich, this 4-voice analog synth invites you to play, shape, and perform with unprecedented expression. Its Tactive™ keybed with polyphonic aftertouch responds like no other, letting you bend notes, swell individual voices, and unlock a new level of nuance in your playing. Fourm allows musicians to explore new creative horizons while staying true to Sequential’s legendary sound.

Performance-ready and studio-friendly, the Fourm features a main mono ¼” output, dedicated headphone out, MIDI In/Out/Thru ports, and USB MIDI for seamless DAW integration. A footswitch/expression pedal input adds hands-free control, making it as versatile on stage as it is in the studio.

Legendary Analog Sound in Your Hands

Built on the legendary Prophet-5 architecture, the Sequential Fourm delivers rich, warm analog tones that shaped a generation. Dual oscillators, a classic 4-pole low-pass filter with bass compensation, and punchy envelopes give you the tools to craft sounds that are both vintage and modern. Whether for studio production or live performance, this synth makes every note feel alive.

A New Fourm of Expression

One of the Fourm’s standout features is its innovative Tactive™ 37-note slim-key keyboard with polyphonic aftertouch. This allows for nuanced playing techniques like solo voice swells, guitar-style bends, and expressive dynamics that respond to every touch. It transforms the act of playing into a true performance experience, giving musicians direct emotional control over their sound.

Modulation Made Intuitive

Inspired by the Pro~One, Fourm’s top-panel modulation matrix puts deep sound design at your fingertips. Route sources and destinations with a push of a button, visualize your connections, and build complex modulation paths quickly – no menu diving required. It’s fast, intuitive, and keeps you in the creative flow.

Performance Ready

From arpeggiator sequences to expressive polyphonic control, the Sequential Fourm is designed for performance. With 128 world-class presets, a sequencer mode, and a robust all-steel chassis, this compact synth is ready to take your ideas from first spark to fully realized track.

Compact, Expressive, and Unmistakably Sequential

Whether you’re composing in the studio, performing live, or exploring sound design, Fourm gives you the tools to push boundaries while honoring Sequential’s timeless analog legacy. It’s compact, powerful, and designed for musicians who demand expression without compromise.

👉 Check out the Sequential Fourm today, and discover how it can transform your music and unlock your creativity.👇