The Sequential Fourm delivers four genuine voices of Sequential analog sound, built on the legendary Prophet-5 voice architecture -- right down to its envelope response curves. With dual oscillators offering simultaneous wave selection and a classic 4-pole low-pass filter, now enhanced with bass compensation, Fourm captures the warmth and punch that shaped a generation -- and takes it to the next level.

Sequential Fourm Overview and Demo:

A Powerful Fourm of Expression

Fourm's 37-note slim-key keyboard features polyphonic aftertouch, unlocking expressive techniques like guitar-style note bends, solo voice swells, and other nuanced articulations -- completely transforming the experience of playing a modern analog polysynth.

Modulation You Can Touch

Inspired by the Pro~One, Fourm's top-panel modulation matrix puts deep sound design at your fingertips -- no menu diving required. Route sources and destinations with a button press, visualize connections with color-coded indicators, and build complex modulation paths in seconds. It's fast, intuitive, and designed to keep you in the creative flow.

One-year warranty included

Wherever you are in the world, all Sequential hardware comes with a one-year warranty to cover any necessary repairs or replacements due to manufacturing faults. Please contact Sequential directly for warranty support.

Features:

- 37-note slim-key keyboard with polyphonic aftertouch
- Warm and organic, 100% analog signal path… read more
- Intuitive, welcoming knob-per-function layout
- Pro-One style top-panel modulation matrix
- Prophet-lineage resonant filter with bass compensation
- Arpeggiator with sequencer mode
- 128 world-class presets
- Pro-quality, all-steel chassis

WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov.

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