SEQUENTIAL FOURM
Fourm is a compact analog synthesizer that offers you an unprecedented level of expressiveness. Fourm combines Sequential’s legendary sound with highly practical modulation features and a particularly responsive keyboard. This new playing companion will help you bring your ideas to life like no other.
Reinventing a Legendary Analog Sound
The four voices of Fourm are based on the architecture of the famous Prophet-5, down to the envelope curves. This way, you benefit from Sequential’s true analog sound. With its two oscillators allowing simultaneous waveform selection and its classic 4-pole low-pass filter — now featuring bass compensation — Fourm adds a new dimension to the punchy, warm character that has shaped the sound of a generation.
A New Fourm of Expression
Fourm’s keyboard features 37 slim keys with polyphonic aftertouch so you can perform expressive techniques such as guitar-like bends, swells, and other nuanced articulations. It redefines playing on a modern polyphonic analog synthesizer.
Hands-On Modulation
The modulation matrix, inspired by the Pro-One, is located on Fourm’s front panel so you can engage in sound design easily, without diving into menus and submenus. You can route sources and destinations at the press of a button, visualize connections with color-coded indicators, and create complex modulation paths in seconds. This matrix is fast, intuitive, and designed never to interrupt your creativity.
Specifications
FEATURES
- Slim 37-key keyboard with polyphonic aftertouch
- Fully analog signal path with warm and organic sound
- Intuitive layout with one function per control
- Front-panel modulation matrix inspired by the Pro-One
- Resonant filter in the Prophet tradition, with bass compensation
- Arpeggiator with Sequencer Mode
- 128 sophisticated presets
- High-quality all-steel chassis
SYNTHESIS
- All oscillators and LFOs allow simultaneous waveform selection
- Oscillator B also functions as an LFO
- Classic Prophet-style sync
- 4-pole resonant low-pass filter
- Feedback with aggressive-sounding drive circuit
- 2 ADSR envelopes
- Step glide for the sequencer
CONNECTIVITY
- Main mono input (6.35 mm jack)
- Mono headphone output (6.35 mm TRS jack)
- MIDI In, Out, and Thru
- Bidirectional USB MIDI port
- Expression pedal/footswitch input
POWER
- Dedicated on/off switch
- 12 V DC 1.2 A center-positive power supply (included)
- Can be connected to an AC outlet from 100 V to 240 V, 50 Hz/60 Hz
- Maximum power consumption: 14 watts
DIMENSIONS AND WEIGHT
- 562 mm W × 251 mm D × 70 mm H (22.13" × 9.88" × 2.75")
- Weight: 3.97 kg (8.76 lbs)
- Anti-theft protection
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