Devin Belanger Unleashes the Sequential FOURM: Prophet Power in a Pint-Sized Package

Straight from the init patch, Devin dives into sound design. The FOURM’s sawtooth and poly aftertouch combo immediately delivers that tactile, expressive feel. It’s not just about nostalgia—the filter resonance squeals just right, and the keyboard’s response is a joy, even for those with Prophet 10 muscle memory.

Rich brass pads are the order of the day, with a nod to Vangelis and CS-80 territory. Devin’s layering, tweaking, and delay pedal antics show the FOURM isn’t just a Prophet clone—it’s got its own voice. The result? A lush, cinematic sound that stands up to the classics, but with a modern edge that’ll cut through any mix.

Here’s where things get spicy. The FOURM’s modulation section isn’t just a tick-box feature—it’s a playground. Devin fumbles (with charm) through the mod matrix, discovering LFOs that reach audio rates and wave shapes you can stack for days. The bus system nods to Sequential’s Pro One and OBX-8, but the FOURM makes it all feel immediate and hands-on.

Polyphonic aftertouch isn’t just a spec sheet brag—it’s genuinely expressive here. Devin shows off vibrato, filter, amplitude, and oscillator sync, all modulated per key. The result is a synth that begs to be played live, with enough depth to keep sound designers busy for weeks. If you want static presets, look elsewhere—this is a street weapon for chaos lovers.

Devin doesn’t sugar-coat it: the FOURM sounds dangerously close to a Prophet 5 Rev4, and even gives the Prophet 10 a run for its money. But there’s a catch—the four-voice limit. For some, it’s a creative constraint; for others, it’s a dealbreaker. Devin admits voice stealing is more noticeable here than on bigger Sequential synths, and it can be a bit of a buzzkill for lush pads or complex chords.

Still, the sound quality is undeniable. If you can live with four voices, you’re getting a synth that punches way above its weight. For Blade Runner pads and expressive leads, the FOURM is a serious contender—just don’t expect to play Rachmaninoff on it without some missing notes.