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Behringer UB-Xa 16-voice Bi-timbral Polyphonic Analog Synthesizer

16-voice Bi-timbral Polyphonic Analog Synthesizer with 32 Oscillators, 2 LFOs, Multimode VCF, VCA Envelope, VCF Envelope, Arpeggiator, PWM, 512 User Preset Slots, 16-channel 5-pin DIN MIDI In/Out/Thru, USB 2.0 Type B, 1/4" TRS Stereo Out, Headphone Out, 2 x 1/4" TRS Foot Pedal Jack, 3 x 1/4" TRS Foot Switch Jack, and Polyphonic Aftertouch
6 Write review Item ID: BehrUBXA
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Seismic Sonics Brimming with Vintage-inspired Analog Panache

As Behringer continues its aural odyssey of reimagining iconic synths for the modern landscape, the latest entry in the series is as musically menacing as it is malleable. Leveraging a bi-timbral architecture, the Behringer UB-Xa is a 16-voice, polyphonic synthesizer that utilizes 32 analog oscillators to power its massive sonics. It delivers the full spread of iconic 1980s-style lightning leads, booming brass, and plush pads, supplemented by a modern menagerie of detailed velocity sensitivity and polyphonic aftertouch to ensure each of its 61 semi-weighted keys is as expressive as possible. Sweetwater’s synth aficionados are supremely impressed with its dual-layer mode, allowing you to conjure two distinct patches across its 16 voices for massive, simultaneous sounds, allowing for detailed tone crafting that can be painlessly saved and recalled with 512 onboard preset slots. Dual LFOs, dedicated VCA and VCF envelopes, pulse-width modulation, and flexible per-oscillator modulation controls are complemented by a switchable, versatile VCF, which boasts 2- and 4-pole filter modes. Connectivity is king, and the UB-Xa pulls no punches. MIDI is available over class-compliant USB 2.0 Type B, as well as 16-channel 5-pin DIN in, out, and thru ports, while foot pedals and foot switches span five individual 1/4-inch TRS jacks: Vibrato, Filter, Sustain, Program Advance, and Hold. Oozing with '80s panache, the Behringer UB-Xa faithfully delivers an uncompromising suite of vintage-fueled sonics that succeeds in supplementing them with modern musical appointments to give you the best of the past and the future of sound.

Related Videos: UB-Xa 16-voice Bi-timbral Polyphonic Analog Synthesizer

Behringer UB-Xa 16-voice Bi-timbral Polyphonic Analogy Synthesizer Features:

  • 16-voice, 32-oscillator design features bi-timbral architecture for massive, dual-layer sounds
  • Velocity-sensitivity and polyphonic aftertouch ensure dynamic voicing opportunities with no shortage of expressivity on tap
  • Versatile VCF boasts 2-pole, 12dB/octave and 4-pole, 24dB/octave options
  • Dual LFOs are armed with 6 waveforms for malleable sound shaping: Sine, Inverse Sawtooth, Square, Sawtooth, Sample & Hold, Trig, and SMP
  • Flexible pitch and modulation options are complemented by diverse oscillator control, including Sync, Unison, and PWM
  • 512 user preset slots provide ample room for sound-crafting and storage with painless storage and management
  • Face-mounted preset recall buttons let you keep 4 of your prized presets instantly available for on-the-fly switch-ups

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Tech Specs

  • Type: Keyboard Synth
  • Analog/Digital: Analog
  • Number of Keys: 61
  • Type of Keys: Full-sized
  • Aftertouch: Polyphonic
  • Velocity Sensitive: Yes
  • Polyphony: 16-voice Bi-timbral
  • Oscillators: 32
  • LFO: 2
  • Filter: 1 Low-pass, 2-pole, 4-pole, Switchable
  • Envelope Generator: VCA, 2 x VCF
  • Audio Outputs: 3 x 1/4" TRS (left, mono, right)
  • Headphones: 1 x 1/4" TRS
  • USB: 1 x Type B (2.0)
  • MIDI I/O: In/Out/Thru/USB
  • Pedal Inputs: 1 x 1/4" TRS (vibrato), 1 x 1/4" TRS (filter), 1 x 1/4" (sustain), 1 x 1/4" (program), 1 x 1/4" (hold)
  • OS Requirements - Mac: macOS 10.10 or later
  • OS Requirements - PC: Windows 7 or later
  • Power Source: Standard IEC AC Input
  • Height: 4.29"
  • Width: 41.14"
  • Depth: 13.78"
  • Weight: 25.79 lbs
  • Manufacturer Part Number: 0722-AAF86-US1

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Customer Reviews

4.8 out of 5

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It is greats despite its poor preset souns

Thank you to Sweetwater and Stephen for helping me get this keyboard. It is my first polyphonic analogue synthesizer. I've been waiting many years to get this. I have many monophonic synths (Sh-101, Pro-1) but nothing monophonic.

First things first, If you are new to analogue synths, you will be underwhelmed with the preset sounds. Most are horrible. They do show ability. How Behringer could spend 6 years creating this and not come up with a better set of presets baffles the mind.

Secondly, there is only a quick start guide. No user manual with all the internal details. HORRIBLE! There is so much to gain in the menu diving that you either explore on your own, or find videos on Youtube. All those years in development and Behringer couldn't give better literature?

Lastly, this is the real deal. It is an incredible instrument with so much to offer. I am so glad it is part of my arsenal. I just wish Behringer put more effort into customer support. All in all I am very happy and will gladly purchase the next Behringer clone, hopefully the DS-80.
by James Plunkett on

One For the Ages-Behr knocks this out of the park

arrived at noon yesterday
First impressions:
THIS IS THE REAL DEAL
very close to a real OBXa. Some patches are 90% of it, which isclose. some are 100%, which is amazing. Behringer have knocked this one out of the park. This is hands down the best thing they've ever put out. (up to now it was the deepmind 6/12)
Anyone into cool vintage synths? This is the thing to get. The four solid years they put in with 15 of their best engineers working on this exclusively...well you can tell they realllly wanted this to be the best thing they ever put out. It is.
People have to get past the Behringer name, and look at this as a boutique labor of love. Which it is. Re-create one of the most powerful synths ever created (not feature-wise but sound-wise), and get it as close to the original as possible. An original OBXa will fill the room and give you chills as you listen to the oscillators rub barely out of tune against each other and create some sinister sounding stuff. Very hard to do if not impossible on any digital synth, or virtual computer software. With a little bit of tweaking and patience, these kind of moments are readily at your fingertips.

Pros:
The sound- It is for all intents an OBXa. (in a fashion that the Behr Model D was definitely NOT a minimoog)
Build- metal, solid, heavy at about 27 pounds. Wooden end cheeks.
Potential-limitless. I've barely scratched the surface and fell deep in a hole exploring a half dozen patches. Running arpeggiators, sequencers, tweaking the sound. It has a ton of sweet spots.
price: this was supposed to come out at $. It would still be worth every penny.

Cons:
Bank A presets- Gawdawful and thin, this bank would convince me this is another hyped piece unworthy of cash.
Keybed- A little flimsy. To be expected at $
Build- (yes I know it's already up there) the knobs are plastic, and feel like one snapping clear off is a real possibility. This should only be transported in a very sturdy gig bag or flight case. It is worth it to save any heartache.

Final Verdict- Anyone who has a knowledge of analog synthesis will bond with this synth quickly. It is like it has a personality of its own in it: easier said about a cool guitar, more difficult to find in a 'sterile' synth. I've played real OBXa, OB8 and Oberheim expanders. If you are looking for a HUGE polyphonic sound reminiscent of some of the best 80's rock, prog or Berlin school sounds, look no further, it has arrived.
by bionaut from USA on
Music background: pro musician

Top Shelf.

I always dreamed of owning this synth. And now I can't believe I have it. I have yet to turn it off and it's been a couple days. Great layout, clean sound. I can easily add whatever effects and of course it sounds buttery smooth. I can only hope their version of the CS-80 is this good. Kudos to the design team. Fantastic job. You are the only reason I can have one of these fabulous machines.
by Chris Blarsky from Denver, CO on
Music background: MillionMachineMarch.com

The sound is there.

It's a dream come true. The synth I've been wanting for 30 years, and now have.

Some have said it doesn't sound right, and those people are simply wrong. The sound is absolutely there. You don't run out of voices, and that's so nice. I dunno what else there is to say about the sound, it's accurate. Some synths have a "vintage" knob to adjust in some tuning irregularity, this has a whole feature that's absurdly deep for making it sound old. Overkill, even. But it's there, if you want that.

It's solidly built, metal shaft pots would have been nice, but you don't throw these around anyway, so not an issue. I dunno why anyone would be critical of the keybed, it's extremely nice. No, it doesn't feel like a piano, and there's no reason it should, since it's a synth. The keys are solid and move smoothly. They're not just good for the price, they're really nice in their own right. I've never played better. It's a matter of taste past a certain level of quality, and these keys pass that bar. Poly aftertouch takes a little getting used to, but even not being used to it, your sounds just come across as that much more organic.

It's an OB-XA with some conveniences added, it doesn't have the depth of programmability that modern synths have, and honestly that's a good thing. Let modern synths be modern. It's good to have some limitations to have to work inside of. You get that sound, with enough voices that you won't run out, and a little extra sauce with the poly aftertouch and atrophy controls.

My only semi actual complaint is that the paddles aren't actually any more ergonomic for me to use than the usual pitch and mod wheel setup. I have a very heavy preference for a pitch stick that moves side to side.

It's a fine synthesizer.
by Megan herring from BEAVERTON, OR on
Music background: making noise on instruments since 1986

Oberhiem vibe without the price tag

I just got this synth and have spent only a day with it so far but let me say that this thing sounds incredible especially at the price point. There are going to be a ton of synth head purists and oberhiem fan boys bashing on this thing but honestly it embodies the OBx vibe super well and like I said, at the price point it's hard to beat. It's not an Oberhiem but it'll do it great. My only gripe is the keys and controls feel a little cheap. Not terribly cheap but not like OBX8 controls and keys. But that's something that's sacrificed to pay this little for a synth like this. If you want OBX sounds but can't afford the cost then get this beauty. If you can swing $ for an OBX8 and feel good about it, definitely go that route.
by Sweetwater Customer on
See also: Key Synths, Behringer, Behringer Synthesizers
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