Real Sequential analog sound you can carry. The Sequential Fourm is a compact four-voice analog synthesizer with polyphonic aftertouch, based on the legendary Prophet-5. Its custom 37-note slim-key keybed was designed together with the analog engine for expressive playing.
Why customers choose it
Who it is for
Synth players, producers and live performers who want authentic analog polyphony in a small, portable instrument.
Specifications
| Voices | 4 |
|---|---|
| Oscillators | 2 analog per voice |
| Filter | 4-pole resonant low-pass (Prophet-5 rev 1 & 2) |
| Envelopes | 2 x ADSR |
| LFO | Global, 7 shapes, tempo sync |
| Keyboard | 37 slim keys, polyphonic aftertouch |
| Sequencer | 64-step polyphonic, per-step glide |
| Arpeggiator | 6 modes |
| MIDI | In, Out, Thru, USB-C |
| Power | 12V DC 1.2A adapter (included), 14 W |
| Weight | 3.97 kg |
| Type | Analog polyphonic synthesizer |
| Polyphony | 4 voices |
Good to know
- The power adapter is included and works on 100-240 V.
FAQ
Is it truly analog?
Yes – analog oscillators and filter, based on the Prophet-5 design.























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