# Twisted Electrons FLEXFM groovebox

A hardware groovebox with eight independent tracks, each combining four-operator FM synthesis, sampling and its own analog filter. A central joystick morphs sounds, edits patterns and performs.

- Category: Inspiration (product)
- Made by: [Twisted Electrons](https://www.twisted-electrons.com/products/flexfm) on Twisted Electrons website
- Original: https://www.twisted-electrons.com/products/flexfm
- On Afterware: https://afterware.xyz/p/twisted-electrons-flexfm-groovebox

## Story

FLEXFM is a standalone groovebox built around eight independent tracks. Each track pairs four-operator synthesis, with FM, AM and ring modulation, with sampling tools and a multimode analog filter. Sound sources range from classic waveforms and wavetables to vocal tones, noise, user-drawn waves and imported WAV samples.

A joystick is the main control. It morphs between sound snapshots, changes the relationships between operators, or moves through pattern variations. It also doubles as a piano-roll cursor for note entry, velocity and probability editing, and live performance gestures.

The sequencer offers 16 patterns of up to 128 steps with per-track lengths and rates, plus step locks, swing, arpeggiation and conditional steps. USB provides MIDI and multitrack audio, so each of the eight dry voices can be recorded separately into a DAW. Twisted Electrons says it is available to preorder for $1,146 USD, with shipping expected by the end of 2026.

## Resources

- [Product page](https://www.twisted-electrons.com/products/flexfm)

Tags: groovebox, fm synthesis, sampling, analog filter, joystick, midi

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