BEHRINGER / UB-Xa MINI

The UB-Xa MINI is a compact yet full-fledged polyphonic synthesizer delivering authentic analog sound. Its three VCOs and switchable 12/24dB filter recreate the warm, rich tones of the 80s for today. Lightweight and highly functional, it's the perfect instrument for both studio and live performance.

Portable Analog Polyphonic Programmable Synthesizer

Faithfully recreates the OB-Xa VCO and VCF circuits from the 1980s

Pure analog signal path based on authentic VCO, VCF, and VCA designs

27-key touch-sensitive keyboard for excellent playability

Three independent VCOs with sawtooth and square waveforms

Multi-mode ring modulator for square wave for metallic sound effects

16-step motion sequencer with 10 memory slots (includes knob operation recording function)

Diverse performance modes including Polyphonic/Unison/Octave/5th/Ring Unison/Ring Polyphonic

3-waveform LFO (with sync function for pitch/filter cutoff/pulse width modulation)

Selectable dual-slope 12/24dB analog low-pass filter (with adjustable resonance)

Powerful, compact, and surprisingly versatile

The UB-Xa MINI is an analog polyphonic synthesizer that packs a powerful sound into a compact body. Featuring a fully analog signal path and three rich VCOs, it revives the iconic sound textures of the 80s for modern music production. Its high portability and powerful sound make it ideal for musicians seeking uncompromising, authentic tones, whether in the studio or on stage.

Compact Yet Overwhelming Presence

Despite its highly portable size, the UB-Xa MINI distills the essence of the original UB-Xa. It features a powerful analog engine, a richly resonant analog filter, and versatile modulation capabilities, delivering classic sounds and expressive control. It's a true performance synth for creators, ready to go anywhere.

Intuitive Sound Control at Your Fingertips

With its 27-key touch-sensitive keyboard and intuitive layout, sound creation is immediate and enjoyable. A switchable 12/24dB analog filter enables powerful tone shaping, while an LFO with three waveforms freely modulates pitch, cutoff, and pulse width. Each knob and key is designed for a musical and natural response.

Diverse features to spark creativity

More than just a synthesizer, the UB-Xa MINI is a tool to unleash your creativity. Its 16-step motion sequencer (with 10 memory slots) is perfect for crafting live grooves and evolving textures. Diverse play modes like ring modulation for metallic, edgy tones, ring unison, and octave provide extensive sound-shaping possibilities for both producers and performers.

Specifications
Synthesizer Configuration
Sound Source Configuration Analog Monophonic Synthesizer
Number of Voices 1 (Monophonic)
Oscillators 3 VCOs
LFO 1 (Waveforms: Sine, Square, Saw)
VCF Analog Low-Pass Filter (Switchable 12 / 24 dB per octave)
Envelope: 1 (ADSR: Attack, Decay, Sustain, Release)

Control Section
Foot Page Select: 32', 16', 8', 4', 2', 1'
Play Mode: Poly, Uni, Oct, 5th, Ring, Ring Poly
LFO Control: Speed Adjustment, Waveform Switch (Saw, Square, Sine)
Oscillator Controls Pitch Modulation, PWM Modulation, Detune
Filter Controls Cutoff Frequency, Resonance, LFO Modulation, Envelope Modulation
Envelope Controls A (Attack), D (Decay), S (Sustain), R (Release)

Sequencer Section
Number of Steps/Patterns 16 steps × 10 patterns
Operations: Tempo Adjustment, Memory Write, Playback/Active, Record/Clear
Keyboard Operations: Scale (1/1, 1/2, 1/4), Metronome On/Off, Step Trigger, Freestyle, Motion Sequence On/Off, Smooth, Clear
Keyboard and Controls
Keyboard: 27 keys (capacitive touch keys)
Volume Control: 0-10
Power Switch Push-button On/Off
Indicator Power LED

Connectors
MIDI Input 5-pin DIN (16-channel compatible)
USB (MIDI) USB-C port (class-compliant)
Headphone Output 3.5 mm TRS stereo (5 mW / 32 Ω)
Sync USB Input/Output Supported

System Compatibility
Supported OS Windows 7 or later / macOS X 10.10 or later
USB Specification USB-C, Class-Compliant (No driver required)

Power and Physical Specifications
Power Input micro USB
Operating Temperature Range 5°C - 45°C (41°F - 113°F)
Dimensions (H × W × D) 40 × 124 × 193 mm
Weight 0.36 kg