Percussa's SSP earned a devoted following as a compact powerhouse for modular synthesis and live performance, but its price tag kept it out of reach for many. The XMX changes that equation by shrinking the footprint to 28 HP while keeping nearly all the sonic firepower intact.
At its core, the XMX runs a quad-core ARM Cortex A35 processor with 256MB of RAM, delivering a full digital modular synthesis engine with an intuitive patch-building interface. You get eight audio/CV inputs and two outputs, a stereo headphone jack with analog volume control, and USB connectivity for MIDI controllers and audio streaming. The front panel features four aluminum encoders with push-button functionality, ten soft-touch function keys, and an OLED display that makes navigation straightforward. Power consumption is modest at around 500mA on the 12V rail, and the module boots from a microSD card just like its bigger sibling.
The module ships with an impressive factory library: 3D wavetable oscillators, granular processing, an eight-channel sample player, step sequencer, arpeggiator, quad virtual analog filters with multiple response types, stereo reverb, delay, physical modeling drums, envelope generators, LFOs, bit crushing, and more. You can stack multiple instances of any module across four independent tracks, each with eight module slots. The built-in recorder captures directly to disk, and the preset system is fully compatible with SSP patches, so you can exchange sounds with users of the larger module.
Community response has been enthusiastic since its 2024 debut. The XMX strikes an appealing balance between power and affordability, making it accessible to eurorack users who want serious synthesis and effects processing without the investment or space demands of the SSP. Some users note the learning curve is real if you're new to modular patching, but the interface design makes it gentler than many alternatives.
