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Behringer UB-XA D Authentic Analog 16-Voice Bi-Timbral Polyphonic Desktop Synthesizer

Behringer UB-XA D Authentic Analog 16-Voice Bi-Timbral Polyphonic Desktop Synthesizer

Pre-Order* 1/30/2025

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  • Details
  • Features
  • Tech Specs
  • Reviews

Over the past 45 years, every synth enthusiast, pop music fan, and film lover has been well acquainted with the unique sounds and textures generated by the groundbreaking 1981 Bi-timbral classic. Despite the massive impact on pop culture, the storied Polysynth's high cost made it an out-of-reach dream for most. At over $17,000 (adjusted for inflation) dollars back in 1981 and pushing 10K-15K in today’s vintage market, the “OB” remains one of the most highly desired but elusive synths ever made.

Great news came in 2018 when Uli Behringer announced plans to recreate the sought-after analog classic. Brimming with the detail and quality we’ve come to expect from Behringer synths—and true to Uli Behringer’s stance that no synthesizer should ever cost more than $1,500. Behringer has faithfully recreated the analog Icon behind soundtracks like “The Terminator” and hits by The Thompson Twins, New Order, Madonna, and Prince—and even rockers like Queen, Rush, and VanHalen. Now, after 6 years in development (and, for some, over 4 decades of wanting), the UB-Xd module has arrived.

Faithfully re-born, right down to the 3340 and 3320 Curtis-style microprocessor-driven VCOs and VCFs, the UB-Xa delivers the lush textures, powerful bass lines, and punching brass you’ve been waiting for. Like the original, the UB-Xd module features Bi-Timbral architecture, allowing you to spit the keyboard or double up two distinct patches on one key for massive sonic possibilities. The UB-Xa D comes loaded with the 106 original pre-set sounds from 1981, “vintage mode” sound signatures of the OB-X and OB-8 versions, and much more.

Despite the meticulous attention to detail that went into developing the sounds, capabilities, and experience of the quintessential 80s synth, Behringer doesn’t leave you stranded in the 80s with 80s limitations. With 16 voices of polyphony, the UB-Xa D has double the polyphonic capability of its 1981 8-voice counterpoint, and that’s just the start. The UB-Xa can store 512 user program memories above and beyond the original 106 preset sounds, plus 4 preset memory recall buttons for instantly recalling your most essential patches.

With all the vintage-style Analog warmth and punch, luxurious bi-timbral layers, and creative potential at command--you’d have an impossibly hard time making the most of such a sophisticated synth without modern connectivity. Naturally, Behringer’s got you covered. The UB-Xa Desktop has full MIDI/USB implementation, NPRN, and CC control over every performance parameter, plus pedal inputs for vibrato, filter, sustain, program, and hold.

Perhaps one of the most exciting advantages of the UB-Xa “D” is its manageable space-saving size. Considering the size and weight of Behringer’s three-and-a-half-foot-long 61-key UB-Xa, the new 18” desktop/rack-mountable module saves valuable studio real estate without sacrificing function. You can access the UB-XAD’s polyphonic aftertouch, and MIDI Polyphonic expression features with your favorite keyboard controller. The UB-8a D also features an additional LFO with 7 waveform shapes, Stereo VCA per voice, an 8-channel modulation matrix, a dual-layer arpeggiator, sequencers, and more.

More Information
Product Name Behringer UB-XA D Authentic Analog 16-Voice Bi-Timbral Polyphonic Desktop Synthesizer
Brand Behringer
MPN UBXAD

What's in the Box?

  • Behringer UB-XA D Authentic Analog 16-Voice Bi-Timbral Polyphonic Desktop Synthesizer
  • Faithful analog reproduction of the OB-Xa with 16-voice polyphony and Multi-timbral 2-voice splitting/layering
  • Vintage mode for accessing sounds from the OB-X and OB-8 and more
  • 32 oscillator design
  • 2 VCOs per voice and oscillator sync mode
  • Stereo VCA per voice
  • 2 dedicated LFOs with 7 waveform shapes for pulse width, oscillator pitch, and filter
  • 2 ADSR generators per voice for VCF and VCA
  • Selectable dual-slope 12/24 dB analog low-pass filter per voice with adjustable resonance
  • Flexible 8-channel modulation matrix
  • Dual-layer arpeggiator and sequencer with real-time sequence transpose
  • 26 rotary controls for direct access to all important parameters
  • 512 total user program memories plus all 106 original 1981 OB-8a factory presets
  • CV/pedal inputs for connection to expression pedals and footswitches
  • High-quality LCD Display with encoder for rapid parameter editing
  • MIDI In/Out/Thru plus USB Type-B
  • Space saving 18.14”x8.83” 10.67lbs module

Synthesizer Architecture

Number of voices 16-voice bi-timbral
Type Analog
Oscillators 32
LFO 2
VCF 1 low pass, 2-pole or 4-pole, (12dB or 24dB/ oct slope), switchable
Envelopes VCA, VCF

Connectivity

MIDI In/out/thru 5-pin DIN / 16 channels
USB (MIDI) USB 2.0, type B
Main output 2 x 1/4" TRS, balanced, max. 22 dBu, Impedance: 50 Ω
Headphones 1/4" TRS, stereo, max 25mW dBu, Impedance: 25 Ω
Foot pedals Vibrato: 1/4" TRS, balanced; Filter: 1/4" TRS, balanced
Foot switches Sustain: 1/4" Mono; Program advance: 1/4" Mono; Hold: 1/4" Mono

USB

Type Class-compliant USB 2.0, type B
Supported operating systems Windows 7 or higher, Mac OS X 10.10 or higher

Manual Section

Controls Volume: 0 to 10, Balance, Master tune

Control Section

Controls Portamento, OSC 2 Detune
Switches Unison

Arpeggiator Section

Switches Settings, Hold, On

LFO Section

Controls LFO Rate
Switches Waveform
LED Sine, Sawtooth, Square, Ramp up, Sample & hold, Trig, SMP

Modulation Section

Controls OSC 1 depth, OSC 2 depth
Switches OSC 1 freq, OSC 2 freq, Filter freq, OSC 1 PWM, OSC 2 PWM, Volume mod

Oscillator Section

Controls Frequency 1, Pulse width, Frequency 2
Switches Saw waveform 1, Pulse waveform 1, Sync OSC 2, F-ENV (envelope follow), OSC 2 Saw waveform 2, Pulse waveform 2, Shift

Keyboard Section

Switches Split (keyboard), Double (keyboard), Lower (keyboard), Upper (keyboard), Chord, Transpose down, Transpose up

Sequencer Section

Switches Rest / tie, Record, Stop, Play / pause

Filter Section

Controls Frequency, Resonance, Modulation, Noise
Switches OSC 1, Half OSC 2, Full OSC 2, 4 Pole, Track

Envelope Section

Controls Attack (envelope), Decay (envelope), Sustain (envelope), Release (envelope), Attack (filter), Decay (filter), Sustain (filter), Release (filter)

Programmer Section

Controls Select encoder
Switches Compare, Manual, Write, Preset / value -, Preset / value +
LED 2 x line, 16-digit LCD display

Assignable Preset Recall Section

Switches 1 / USB / MIDI, 2 / vel / aft, 3 / voice, 4 / mod

Performance LFO

Controls Rate, Depth
Switches Waveform, OSC 1 mod, OSC 2 mod, OSC 2 only (bend), Amount (bend)
LED Triangle, Square, Ramp up, Sawtooth, Random, Sample & hold

Behringer UB-XA D Authentic Analog 16-Voice Bi-Timbral Polyphonic Desktop Synthesizer

Details

Over the past 45 years, every synth enthusiast, pop music fan, and film lover has been well acquainted with the unique sounds and textures generated by the groundbreaking 1981 Bi-timbral classic. Despite the massive impact on pop culture, the storied Polysynth's high cost made it an out-of-reach dream for most. At over $17,000 (adjusted for inflation) dollars back in 1981 and pushing 10K-15K in today’s vintage market, the “OB” remains one of the most highly desired but elusive synths ever made.

Great news came in 2018 when Uli Behringer announced plans to recreate the sought-after analog classic. Brimming with the detail and quality we’ve come to expect from Behringer synths—and true to Uli Behringer’s stance that no synthesizer should ever cost more than $1,500. Behringer has faithfully recreated the analog Icon behind soundtracks like “The Terminator” and hits by The Thompson Twins, New Order, Madonna, and Prince—and even rockers like Queen, Rush, and VanHalen. Now, after 6 years in development (and, for some, over 4 decades of wanting), the UB-Xd module has arrived.

Faithfully re-born, right down to the 3340 and 3320 Curtis-style microprocessor-driven VCOs and VCFs, the UB-Xa delivers the lush textures, powerful bass lines, and punching brass you’ve been waiting for. Like the original, the UB-Xd module features Bi-Timbral architecture, allowing you to spit the keyboard or double up two distinct patches on one key for massive sonic possibilities. The UB-Xa D comes loaded with the 106 original pre-set sounds from 1981, “vintage mode” sound signatures of the OB-X and OB-8 versions, and much more.

Despite the meticulous attention to detail that went into developing the sounds, capabilities, and experience of the quintessential 80s synth, Behringer doesn’t leave you stranded in the 80s with 80s limitations. With 16 voices of polyphony, the UB-Xa D has double the polyphonic capability of its 1981 8-voice counterpoint, and that’s just the start. The UB-Xa can store 512 user program memories above and beyond the original 106 preset sounds, plus 4 preset memory recall buttons for instantly recalling your most essential patches.

With all the vintage-style Analog warmth and punch, luxurious bi-timbral layers, and creative potential at command--you’d have an impossibly hard time making the most of such a sophisticated synth without modern connectivity. Naturally, Behringer’s got you covered. The UB-Xa Desktop has full MIDI/USB implementation, NPRN, and CC control over every performance parameter, plus pedal inputs for vibrato, filter, sustain, program, and hold.

Perhaps one of the most exciting advantages of the UB-Xa “D” is its manageable space-saving size. Considering the size and weight of Behringer’s three-and-a-half-foot-long 61-key UB-Xa, the new 18” desktop/rack-mountable module saves valuable studio real estate without sacrificing function. You can access the UB-XAD’s polyphonic aftertouch, and MIDI Polyphonic expression features with your favorite keyboard controller. The UB-8a D also features an additional LFO with 7 waveform shapes, Stereo VCA per voice, an 8-channel modulation matrix, a dual-layer arpeggiator, sequencers, and more.

More Information
Product Name Behringer UB-XA D Authentic Analog 16-Voice Bi-Timbral Polyphonic Desktop Synthesizer
Brand Behringer
MPN UBXAD

What's in the Box?

Behringer UB-XA D Authentic Analog 16-Voice Bi-Timbral Polyphonic Desktop Synthesizer
Features
  • Faithful analog reproduction of the OB-Xa with 16-voice polyphony and Multi-timbral 2-voice splitting/layering
  • Vintage mode for accessing sounds from the OB-X and OB-8 and more
  • 32 oscillator design
  • 2 VCOs per voice and oscillator sync mode
  • Stereo VCA per voice
  • 2 dedicated LFOs with 7 waveform shapes for pulse width, oscillator pitch, and filter
  • 2 ADSR generators per voice for VCF and VCA
  • Selectable dual-slope 12/24 dB analog low-pass filter per voice with adjustable resonance
  • Flexible 8-channel modulation matrix
  • Dual-layer arpeggiator and sequencer with real-time sequence transpose
  • 26 rotary controls for direct access to all important parameters
  • 512 total user program memories plus all 106 original 1981 OB-8a factory presets
  • CV/pedal inputs for connection to expression pedals and footswitches
  • High-quality LCD Display with encoder for rapid parameter editing
  • MIDI In/Out/Thru plus USB Type-B
  • Space saving 18.14”x8.83” 10.67lbs module
Tech Specs

Synthesizer Architecture

Number of voices 16-voice bi-timbral
Type Analog
Oscillators 32
LFO 2
VCF 1 low pass, 2-pole or 4-pole, (12dB or 24dB/ oct slope), switchable
Envelopes VCA, VCF

Connectivity

MIDI In/out/thru 5-pin DIN / 16 channels
USB (MIDI) USB 2.0, type B
Main output 2 x 1/4" TRS, balanced, max. 22 dBu, Impedance: 50 Ω
Headphones 1/4" TRS, stereo, max 25mW dBu, Impedance: 25 Ω
Foot pedals Vibrato: 1/4" TRS, balanced; Filter: 1/4" TRS, balanced
Foot switches Sustain: 1/4" Mono; Program advance: 1/4" Mono; Hold: 1/4" Mono

USB

Type Class-compliant USB 2.0, type B
Supported operating systems Windows 7 or higher, Mac OS X 10.10 or higher

Manual Section

Controls Volume: 0 to 10, Balance, Master tune

Control Section

Controls Portamento, OSC 2 Detune
Switches Unison

Arpeggiator Section

Switches Settings, Hold, On

LFO Section

Controls LFO Rate
Switches Waveform
LED Sine, Sawtooth, Square, Ramp up, Sample & hold, Trig, SMP

Modulation Section

Controls OSC 1 depth, OSC 2 depth
Switches OSC 1 freq, OSC 2 freq, Filter freq, OSC 1 PWM, OSC 2 PWM, Volume mod

Oscillator Section

Controls Frequency 1, Pulse width, Frequency 2
Switches Saw waveform 1, Pulse waveform 1, Sync OSC 2, F-ENV (envelope follow), OSC 2 Saw waveform 2, Pulse waveform 2, Shift

Keyboard Section

Switches Split (keyboard), Double (keyboard), Lower (keyboard), Upper (keyboard), Chord, Transpose down, Transpose up

Sequencer Section

Switches Rest / tie, Record, Stop, Play / pause

Filter Section

Controls Frequency, Resonance, Modulation, Noise
Switches OSC 1, Half OSC 2, Full OSC 2, 4 Pole, Track

Envelope Section

Controls Attack (envelope), Decay (envelope), Sustain (envelope), Release (envelope), Attack (filter), Decay (filter), Sustain (filter), Release (filter)

Programmer Section

Controls Select encoder
Switches Compare, Manual, Write, Preset / value -, Preset / value +
LED 2 x line, 16-digit LCD display

Assignable Preset Recall Section

Switches 1 / USB / MIDI, 2 / vel / aft, 3 / voice, 4 / mod

Performance LFO

Controls Rate, Depth
Switches Waveform, OSC 1 mod, OSC 2 mod, OSC 2 only (bend), Amount (bend)
LED Triangle, Square, Ramp up, Sawtooth, Random, Sample & hold
Reviews