




Analog Polyphonic Synthesizer with 3 VCOs, Classic DUAL VCF, Ring Modulator, and 16-Step Motion Sequencer
Portable analog polyphonic and programmable synthesizer
Authentic reproduction of OB-Xa VCO and VCF circuitry from the ‘80s
Pure analog signal path based on authentic VCO, VCF, and VCA designs
27 touch-sensitive keys for great playability
3 separate VCOs with saw and square waveforms
Multi-mode ring modulator on square waves for metallic sound effects
16-step motion sequencer with 10 memory slots and recording of knob movements
Extensive play modes featuring poly, unison, octaves, fifths, ring unison, and ring poly
LFO with 3 waveforms and sync for pitch, filter cutoff, and pulse width modulation
Selectable dual-slope 12/24 dB analog low-pass filter with adjustable resonance
The UB-Xa MINI is a compact analog polyphonic synthesizer that delivers big sound in a small package. With a fully analog signal path and three rich VCOs, it brings iconic ’80s textures into the modern age. Whether in the studio or on stage, its portability and punch make it an ideal choice for musicians who want authentic tone without compromise.
Sized for convenience but designed for performance, the UB-Xa MINI captures the essence of the UB-Xa in a streamlined format. It features a powerful analog engine, lush analog filters, and versatile modulation options, giving creators access to classic sounds and expressive controls – all in a more travel-ready design.
With 27 touch-sensitive keys and an intuitive layout, sound shaping is immediate and fun. The switchable 12/24 dB analog filter offers powerful tone sculpting, while the LFO with three waveforms modulates pitch, cutoff, and pulse width with ease. Every knob and key are tuned for tactile, musical response.
More than just a synth, the UB-Xa MINI includes a 16-step motion sequencer with 10 memory slots – ideal for live grooves and evolving textures. Its ring modulator brings edgy, metallic tones to life, and versatile play modes like ring unison and octaves open up a broad sonic palette for producers and performers alike.
From retro synthwave to cinematic scoring, the UB-Xa MINI adapts to your musical world. Its versatile analog engine and performance-ready features make it perfect for both beginners and pros seeking timeless tone in a smart, modern format – at a price that’s as approachable as the instrument itself.