Behringer UB-Xa Classic Analog 16-Voice Multitimbral Polyphonic Synthesizer

Generate classic and iconic synth sounds with the Behringer UB-Xa, an analog 16-voice, 2-part multitimbral polyphonic synthesizer with eight vintage modes and a 61-note keyboard with velocity sensitivity and polyphonic aftertouch. The UB-Xa is an authentic reproduction of the classic Oberheim OB-Xa synthesizer, complete with the original factory patches.



This synthesizer goes beyond a clone and features several enhancements including velocity and aftertouch, 512 user programs, and comprehensive MIDI implementation. Vintage mode offers signature sounds from the OB-Xa and OB-8, plus settings for Creamy, Broken, Gnarly, Bright, Modern, and Stereo. The keyboard can be split or layered with two sounds. Includes 35 Split Keyboard programs and 35 Doubled programs. The UB-Xa ships with a power cord.



Key Features:

• Analog polyphonic synthesizer and authentic reproduction of classic OB-Xa with original factory patches


• Vintage mode with 8 synthesizer signatures including OB-Xa, OB-8, and more


• 16 voices with 2 VCOs per voice and oscillator sync mode


• Multitimbral capability for splitting or layering 2 sounds


• VCOs and VCFs based on original 3340 and 3320 semiconductor designs


• Both VCOs generate sawtooth, triangle, or square waveforms with variable pulse width


• Selectable 12/24 dB analog low-pass filter per voice with adjustable resonance

Functional Overview:

• 61 semi-weighted full-size keys with poly aftertouch and velocity sensitivity


• 8-channel modulation matrix for expanded sonic capabilities


• Dual-layer arpeggiator and sequencer with real-time transpose


• 2 dedicated LFOs with 7 waveform shapes


• 2 ADSR generators per voice for VCF and VCA control


• Stereo VCA per voice for voice/layer panning


• 26 rotary controls for real-time access to key parameters


• High-quality LCD display with encoder for fast editing

Additional Features:

• Assignable preset recall switches for fast program selection


• Spring-loaded pitch and assignable modulation paddles


• 512 user program memories with Compare and Match function


• Stereo balanced outputs for top signal integrity


• CV/pedal inputs for expression pedal and footswitch


• MIDI Polyphonic Expression (MPE) support


• Comprehensive MIDI implementation including NRPN/CC and bulk load/save

Iconic Synthesizer:

The UB-Xa carries a legacy of iconic '80s hits. From Rush to The Police, Prince, Van Halen, and even the Terminator theme by Brad Fiedel, this synths lineage is unmatched. Now its your turn to make history.



Play It Your Way:

61 full-sized, semi-weighted keys with polyphonic aftertouch and velocity sensitivity detect every nuance of your playing. The 8-channel modulation matrix offers sound-shaping flexibility. With 26 rotary controls and more, sculpt your sound in countless ways.



Total Recall:

Save up to 512 user program memories and assign them to preset recall switches for quick access. Perfect for live jams and performances.





What's in the Box

Behringer UB-Xa Classic Analog 16-Voice Multitimbral Polyphonic Synthesizer


• Power Cord