Step into the legendary sound that defined an era with the Behringer UB-Xa, a meticulously crafted homage to the iconic OB-Xa synthesiser that powered countless 80s classics. This isn't merely a nostalgic recreation � Behringer has faithfully reproduced the original's VCOs and VCFs based on the legendary 3340 and 3320 chip designs whilst incorporating modern enhancements like velocity sensitivity, aftertouch, and comprehensive MIDI implementation. The result is a 16-voice analog powerhouse that delivers the authentic growl and sizzle that made artists like Prince, Van Halen, and Rush household names.
The UB-Xa's impressive feature set includes multi-timbral capability for splitting or layering sounds, a flexible 8-channel modulation matrix, and dual arpeggiator/sequencer functionality. Its 61 semi-weighted keys with poly aftertouch provide expressive control, whilst the vintage mode offers eight different synthesiser signatures including the original OB-Xa and OB-8 characters. With 512 user program memories, original factory patches, and a comprehensive array of rotary controls for real-time parameter access, this synthesiser bridges the gap between classic analog warmth and contemporary functionality.
Professional connectivity options include fully servo-balanced outputs, CV/pedal inputs, and MIDI Polyphonic Expression (MPE) support for multidimensional control. The spring-loaded pitch and modulation paddles, combined with assignable preset recall switches and a high-quality LCD display, ensure that both studio work and live performance demands are met with exceptional versatility and reliability.
- Analog polyphonic synthesizer and authentic reproduction of classic OB-Xa including original factory patches
- Vintage mode allows selection of 8 synthesizer signatures including OB-Xa, OB-8 and more
- 16 voices with 2 VCOs per voice and oscillator sync mode
- Multi-timbral capability allows splitting or layering 2 different sounds
- VCOs and VCFs based on reproductions of original 3340 and 3320 semi conductor designs
- Both VCOs generate sawtooth, triangle or square waveforms with variable pulse width
- Selectable dual-slope 12/24 dB analog low-pass filter per voice with adjustable resonance
- 61 semi-weighted full-size keys featuring poly after-touch and velocity sensitivity
- Flexible 8-channel modulation matrix for dramatic expansion of sonic possibilities
- Dual-layer arpeggiator and sequencer with real-time sequence transpose
- Velocity and after-touch can be optionally used for more expressive performance
- 2 dedicated LFOs with 7 waveform shapes for modulation of pulse width, oscillator pitch and filter cutoff frequency
- 2 ADSR generators per voice for control of VCF and VCA
- Stereo VCA per voice to allow control over voice/layer panning
- 26 rotary controls give direct and real-time access to all important parameters
- High-quality LCD Display with encoder for rapid parameter editing
- Assignable preset recall switches for immediate program selection
- Spring-loaded pitch and assignable modulation paddles provide total hands-on performance
- 512 user program memories with “compare and match” feature to quickly match all analog controls to stored program values
- Fully servo-balanced outputs for highest signal integrity
- CV/pedal inputs for connection to expression pedals and footswitches
- MIDI Polyphonic Expression (MPE) to enable multidimensional controllers and multiple parameters per note
- Comprehensive MIDI implementation (including NRPN/CC control of all parameters and bulk load/save)



