The expressive Fourm compact analog synthesizer with polyphonic aftertouch is now available for purchase directly from the Sequential webstore. We’re offering free shipping.

From the creation of the Prophet-5, the world’s first fully programmable polyphonic synthesizer, to the development of MIDI technology and beyond, Sequential has consistently pushed the …

Jun 27, 2025 · With its 100% analog signal path, discrete-component voltage-controlled oscillators, filters, and amplifiers, the Prophet-6 delivers the warm, punchy sound that has …

Sequential was founded by legendary instrument designer and Grammy-winner Dave Smith. In 1977, Dave designed the Sequential Circuits Prophet-5, the world’s first fully-programmable …

The Return of a Legend The new Prophet-5 is Dave Smith’s timely return to the analog poly synth that changed the world. It’s “the best of all Prophet-5s” as Dave puts it because it embodies all …

Now, celebrating 50 years of Sequential’s design and innovation, discerning synth enthusiasts can own a 10-voice version of this iconic instrument, featuring exclusive lacewood panels, each as …

Sequential’s Trigon-6 is a premium modern analog polysynth. Its rich character and intuitive knob-per-function control make it a standout in the studio, onstage, and in your mix.

With 150 GB of internal samples from acclaimed sound developers 8Dio, and all of the powerful synthesis tools you’ve come to expect from Sequential, the Prophet X has a musical voice …

It’s a Polyphonic Mopho Keyboard! The Mopho x4 builds upon the same award winning voice architecture of the Mopho and Mopho Keyboard, the Mopho x4 boasts huge sound and 4 …

Nov 11, 2025 · For our latest sound bank, Punch & Presence: Pro-One for Fourm, we asked veteran composer and sound designer Drew Neumann—known for his work on Æon Flux, The …