Full Description
View Full Description
Recreate the Golden Age of synthesis
Step back in time with the UB-Xa's Vintage Mode. This feature allows you to select from 8 synthesizer signatures, including the legendary OB-Xa and OB-8. With the UB-Xa, you can recreate the iconic sounds that shaped the music of the past and bring them into the present.
Limitless sound design
With 16 voices and 2 VCOs per voice, the UB-Xa gives you incredible flexibility and depth in your sound design. The oscillator sync mode adds a touch of complexity to your patches, allowing you to create rich harmonics and complex textures. Whether you're layering two different sounds or splitting the keyboard, the UB-Xa's multi-timbral capability opens up a world of sonic possibilities.
Faithful and authentic
The UB-Xa's VCOs and VCFs are based on the original 3340 and 3320 semi-conductor designs, ensuring an authentic and true-to-the-original sound. You'll find sawtooth, triangle, and square waveforms at your fingertips, with variable pulse width for added versatility. The selectable dual-slope 12/24 dB analog low-pass filter per voice with adjustable resonance allows for further tonal variety.
Expressive playability
Featuring 61 semi-weighted full-size keys with poly after-touch and velocity sensitivity, the UB-Xa offers a responsive and expressive playing experience. The velocity and after-touch can used to add further movement to your performances.
Endless sonic exploration
The UB-Xa boasts a flexible 8-channel modulation matrix, giving you the ability to modulate pulse width, oscillator pitch, and filter cutoff frequency. With 2 dedicated LFOs and 7 waveform shapes, you have even more control over your sound, allowing you to create intricate and evolving textures.
Real-time parameter editing
With 26 rotary controls and a high-quality LCD display, the UB-Xa offers direct and real-time access to all important parameters. The assignable preset recall switches make it easy to switch between your favorite sounds on the fly, giving you instant access to patches.
Features
- Analog polyphonic synthesizer based on the classic architecture of the OB-Xa
- Includes original factory patches to tap into the classic power of its predecessor
- Vintage mode with eight different voicings to recreate aging components, from Modern to Vintage to Gnarly
- 16 voices with two VCOs per voice and oscillator sync
- Bi-timbral design allows you to split or layer the keyboard between two different sounds
- VCO and VCFs based on recreations of the original 3340 and 3320 semiconductors that powered the original synth
- Both VCOs can create sawtooth, triangle, or square waveforms with pulse width modulation for tonal variety
- Dual slope analog low-pass filter with selectable 12 dB/octave and 24 dB/octave slopes and resonance
- 61 semi-weighted keys with polyphonic aftertouch and velocity sensitivity, for expressive playing
- Eight-channel modulation matrix for expanding patches and adding movement and depth
- Dual-layer arpeggiator and sequencer with real-time transposition of stored sequences
- Two dedicated LFOs with 7 waveform shapes for a wide range of modulation curves
- Two ADSR envelope generators per voice provide control over filter and amp
- Stereo VCA per voice allows for voice or layer panning for a wide, moving stereo field
- 26 rotary controls for fast, hands-on real-time patching
- Quality LCD display with encoder for easy menu and parameter editing
- Assignable preset recall switches for quickly loading new programs
- Spring-loaded pitch and modulation paddles for additional performance options
- 512 user memory slots with "compare and match" to make patch parameters match synth panel
- Servo-balanced outputs for crisp, accurate signal
- CV and pedal inputs for use with expression pedals and footswitches
- Compatibility with MIDI Polyphonic Expression (MPE) controllers for additional expression
- Full MIDI implementation with NRPN and CC control of parameters with bulk patch load and save
Specifications
- Product Code: UB-XA
- Number of Voices: 16-voice bi-timbral
- Type: Analog
- Oscillators: 32 (2 VCOs per voice)
- LFO: 2
- VCF: 1 low pass, 2-pole (12 dB/oct) or 4-pole (24 dB/oct), switchable
- Envelopes: VCA, VCF
- 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: 50Ω
- Headphones: 1/4" TRS, stereo, max. 25 mW dBu, Impedance: 25Ω
- 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 255, Balance, Master Tune
- Switches: Auto, Chord
Control Section
- Controls: Portamento, OSC 2 Detune
- Switches: Unison
Arpeggiator Section
- Controls: Rate
- Switches: Settings, Hold, On
LFO Section
- Controls: LFO Rate
- Switches: Waveform
- LED: Sine, Inverse Sawtooth, Square, Sawtooth, 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)
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 +
- Display: 2 x line, 16-digit LCD display
Assignable Preset Recall Section
- Switches: 1/USB/MIDI, 2/Vel/aft, 3/Voice, 4/Mod
Keyboard and Controls
- Wheels: Pitch, Modulation
- Controls: Rate, Depth
- Switches: Waveform, OSC 1 mod, OSC 2 mod, OSC 2 only (bend), Amount (bend), Transpose down, Transpose up
- LED: Triangle, Square, Sawtooth, Inverse Sawtooth, Random, Sample & Hold
- Keyboard: 61 full-size keys with velocity and polyphonic aftertouch