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Arturia PolyBrute 6-voice Polyphonic Morphing Analog Synthesizer

61-key Analog Synthesizer with Brute-series Oscillators, 2 VCFs, 3 LFOs, 3 Envelope Generators, Motion Recorder, 12 x 32 Modulation Matrix, Ribbon Controller, Morphée XYZ Controller, and Onboard Effects
$2,699.00

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Arturia PolyBrute 6-voice Polyphonic Morphing Analog Synthesizer
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Analog Synthesis, Evolved!

Arturia has taken analog synthesis to new heights with the PolyBrute, an advanced synthesizer crafted for serious sound design. With six voices of polyphony, two analog oscillators, and a dual filter section featuring both a Steiner-Parker filter and a Ladder filter, the Poly Brute nails classic analog sounds, from basement-dwelling basslines to stratospheric pads. But this is no mere throwback-style synth. The PolyBrute overflows with modern features that explode its creative potential, including a 32-destination modulation matrix, a 64-step polyphonic sequencer, a ribbon controller, a digital effects section, and Arturia’s cutting-edge Morphée pad, which empowers you to twist and evolve patches with nuanced hand control. Arturia’s Brute series of synthesizers and drum machines are a favorite of synthesists at Sweetwater, and the PolyBrute is a welcome addition to the lineup. For next-generation analog synthesis, get your hands on the Arturia PolyBrute and prepare for a unique analog experience.

Two classic analog voltage-controlled filters

With its dual-filter design — a Steiner-Parker filter and a Ladder filter, the Arturia PolyBrute is steeped in rich and creamy analog vibe. The Steiner-Parker filter dates back to the 1970s, where it was originally employed on the classic Synthacon synthesizer, and it’s known for retaining amplitude when you crank the resonance, allowing for some serious squelch. For the PolyBrute, Arturia tweaked the original Steiner-Parker formula, adding continuous highpass, bandpass, and lowpass modes to deliver a monumental spectrum of tones. The PolyBrute’s traditional four-pole ladder filter is ideal for generating guttural bass patches, shimmering strings, and laser-hot leads. And, PolyBrute lets you assign its two VCOs and noise generator independently to either filter to serve up ultra-stacked sonics.

Fantastic feel and expressive controls

Synth aficionados know that a huge part of the appeal of hardware synthesizers is the visceral sensation of twisting knobs, sliding faders, and bending mod wheels. With that in mind, Arturia fashioned PolyBrute for maximum feel to heighten the playing experience and inspire expressive performances. The PolyBrute is equipped with a 61-note deluxe-action keyboard with velocity and aftertouch, a wooden ribbon controller, a motion recorder, and the groundbreaking 3-dimensional Morphée pad. Along with its slew of parameter controls, these tactile appointments beg to be played, inviting artists to dive in and lose themselves in an immersive analog wonderland.

Powerful modulation matrix and polyphonic step sequencer

Without modulation, synths would just spit out raw, uninspiring waveforms. But wrap them in an envelope, sprinkle in a little LFO to control filter cutoff, pitch, or pulse width, and, suddenly you’ve got a universe of timbres at your fingertips. The PolyBrute is chock full of modulators, and it’s powered-up with a 32-destination routing matrix that makes it easy to assign modulators to destinations and controllers for forming otherworldly patches. Additionally, the PolyBrute sports a 64-step polyphonic sequencer and an arpeggiator, so you can program or play complex patterns to twist, mangle, and manipulate with the PolyBrute’s formidable set of soundshaping tools.

Shown with optional Arturia wooden keyboard legs. Sold separately.

Arturia PolyBrute Analog Matrix Synthesizer Features:

  • 100% analog signal path provides the rich interactive sound that synth enthusiasts crave
  • Built around a 61-note full-sized keyboard with aftertouch and mod and pitch wheels
  • Dual VCOs with UltraSaw and Metalizer deliver sought-after Brute-series sound
  • Shape your sound with Steiner-Parker and ladder filters for an added range of character
  • Simple navigation (no menus or shift commands) makes operation simple and intuitive
  • Instantly route signals, recall presets, and more via the matrix button array
  • Expressive controls including the cutting-edge Morphée pad and a wooden ribbon controller
  • 64-step sequencer lets you add motion to your sounds and create complex phrases
  • Enhance your sounds with amazing onboard digital effects including delay, reverb, and more
  • Included editor/librarian software and 768 preset slots with 384 factory presets make finding the perfect patches easy
  • Easy-to-read OLED display for preset browsing
  • Integrates easily into your setup with MIDI and USB interfacing
  • Robustly constructed with beautiful black walnut cheeks and high-quality knobs and faders

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Tech Specs

  • Type: Keyboard Synthesizer with Sequencer
  • Sound Engine: 6-voice Polysynth with Digital Effects
  • Analog/Digital: Analog with Digital FX
  • Number of Keys: 61
  • Type of Keys: Synth
  • Aftertouch: Yes
  • Velocity Sensitive: Yes
  • Other Controllers: XYZ Morphee Touch Controller, Ribbon Strip, 2 x Mod Wheel
  • Pads: 96 x Pads (Presets, Sequencer, Arpeggiator, Mods)
  • Polyphony: Monophonic, 6-voice
  • Number of Presets: 384 Factory Presets, 768 Preset Slots
  • Oscillators: 2 x Analog VCO
  • Waveforms: Triangle with Metalizer, Sawtooth, Square with Pulse Width
  • LFO: 2 x LFO (waveform selection), 1 x LFO (waveform shaping)
  • Filter: Steiner Parker 12dB/Oct Filter, Ladder 24dB/Oct Filter with Distortion
  • Envelope Generator: 2 x Velocity-sensitive ADSR, 1 x DADSR
  • Effects Types: Modulation, Delay, Reverb
  • Arpeggiator: 32-step Arpeggiator
  • Sequencer: 64-step Polyphonic Sequencer, 3 modulation tracks
  • Audio Outputs: 2 x 1/4" (left/mono, right)
  • USB: 1 x Type B
  • MIDI I/O: In/Out/Thru/USB
  • Pedal Inputs: 2 x 1/4" (expression), 1 x 1/4" (sustain)
  • Other I/O: 2 x 1/8" (sync in/out)
  • Mod Matrix: 12 x 32
  • Software: PolyBrute Connect (editor/librarian)
  • OS Requirements - Mac: OS X 10.10 or later
  • OS Requirements - PC: Windows 7 SP1 or later
  • Power Source: Standard IEC AC cable
  • Height: 4.4"
  • Width: 38.3"
  • Depth: 14.9"
  • Weight: 44.1 lbs.
  • Manufacturer Part Number: 551001

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Customer Reviews

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Rated 5/5

So Glad I Gambled on the PolyBrute

I had enough money in my budget for a Prophet 5/10 or even the upcoming OB-X. But there was something about the PolyBrute's workflow that just kept drawing me in so I rolled the dice even though I am a HUGE fan of the DSI/Sequential sound. I loved the idea of an analog synth that could take me to new places that perhaps only the even more expensive Moog One can go.

I could not be happier that I took a risk and went down the less-traveled path. The modulation options take me to completely new worlds. I can get lost for hours on the most beautiful, crazy, scary, or exciting sonic journeys. But just in case you're a little worried that the PolyBrute can't do classic sounds, it absolutely excels in this department, too. Firmware 2.0 incorporates voice-component modeling into the oscillator tuning settings and the accuracy of the various filters, LFOs, VCAs, etc. This is different than just random pitch variation. Instead, each voice is giving slightly imperfect, but stable values, which is actually how all the old analog synths we know and loved operated. They didn't fluctuate much (provided they were in good condition), but the technology at the time did not allow perfect unformity between all the analog elements. This was a big source of the warm, vintage synth sound we all know and love and Arturia has nailed that emulation in more detail than a lot of other manufacturers. For those who want to fine-tune their synths to mimic select classics, you can dive in even more using voices as a source and programming tiny little offsets per voice for each of the oscillators, LFOs, and filters. Better yet, even if you take up 16 mod-slots programming offsets to nail that vintage sound, you STILL have the rest of the gigantic mod-matrix to go wild. Check out the Creative Spiral channel on YouTube for detailed info about voice offsets of classic synths and download his template patches for the Memory Moog, Prophet 5, Jupiter, etc. This will give you all the vintage vibe you could want and more.

But I'll be honest, if I only wanted a vintage sound, I would've bought a Prophet 5. Instead, I wanted a great analog sound that I could then mold, warp, and destroy into something different altogether. And this is where the PolyBrute is fantastic. The ability to modulate everything including delays, to reverbs, to modulation effect makes for nearly infinite sound exploration. Morph one sound into another. In the process you are likely to find an even better sound somewhere in between, which Arturia makes really easy to copy that in between sound into its own patch where you can start the journey all over again. Add in the excellent PolyBrute Connect Software combined with the almost-entirely knob-per-function control panel and this synth is incredibly complex but also incredibly easy to use. The 3D Morphee, the ribbon, duo-phonic aftertouch, and the mod and pitch wheels make manipulating sounds in real time very easy. It is an extremely expressive synth to play.

The PolyBrute is laid out so logically that even though I've only had it for a month, I can already use it in the dark without needing to read the labels on the knobs or sliders. The possibilities on the mod-matrix are vast, but actually making it happen is really easy. This synth was clearly designed by people who prioritize creativity and accessibility but did not want to limit functionality. It's gotta be one of the best synth designs of all time.

If someone asked me to describe the sound of this synth, I would say "expressive". It can nail lush, warm vintage pads with the voice-component modeling. But it can also sound super modern. I've made my own 808-style basses on it and they sound absolutely massive. But because of all the mod destinations and the expression controls, every sound can be subtly or radically manipulated to enhance a performance. There is a TON of sub-bass on this thing (in fact, the EQ that is available with firmware 2.0 works great to take this out when it's not necessary). It absolutely shakes the house. It is also a very capable monosynth.

There is something about the immediacy of the sound. Maybe the filters are just a bit snappier, but when I listen to recordings that I've made with the PolyBrute, they jump out of the speakers a little more than my soft synths (which I still love and use all the time) and my other hardware synths. It thrives making acoustic-sounding synth sounds, too. Program a synth Rhodes and with the dynamic controls it almost sounds like you can hear the real hammers. The instrument feels very alive.

I honestly could not recommend this synth more. I'm typically more of a 4.5-star guy even for gear that I truly love. But the PolyBrute gets a 5. It stands a lone with its combination of analog sound, digital functionality, ease of use in productions thanks to the PolyBrute Connect software, and creative potential. It is an incredibly inspiring instrument to play. I can sit down without a thought in my head about what kind of music I might want to make and just let the PolyBrute guide me. The ONLY thing I'm not a fan of is Arturia is still working on improving PolyBrute Connect's stability in ProTools. It works for me as long as I move one track at a time and make my unused tracks inactive before I open a second instance of the software. But even with that limitation, I love the synth so much, I can't even dock it a half a star.

Will this be my last synth? No way! I fully admit I have a problem. I still want a Prophet 5/10, an Iridium, and others. But it has at least cooled my GAS fever for a little while.
Music background: Producer/Songwriter
Rated 5/5

Lush. Wonderful. Characterful. Tactile. Expressive.

Hear for yourself. The strings pad is the polybrute. The arp is the Matriarch and the bass (headphones needed) is the Pro 3 SE.

You can here more of all these instruments on my channel. All bought from Sweetwater.
Music background: 41 years of noodling with keyboard. Payed drums i. Bands in the ‘90’s and now a home studio and synth enthusiast.
Rated 5/5

No One Is Worthy

This is next next level. The only other analog synth I've ever owned was an arturia microbrute. I had a lot of fun with that thing, but really wanted to take things to the next level. So I splurged. And I'm not disappointed. It has become the centerpiece to anything keyboard related for me. There's nothing I can really say that hasn't been said already. I'm not worthy to own it, but I rest easy knowing that nobody is.
Music background: Drummer, Audio Engineer
Rated 5/5

A monster

Phenomenal instrument. A mixture of weird , beautiful and nasty. So glad I chose this over others. A monster of a synth.
Music background: Composer
Rated 5/5

Never had so much fun playing

As per the title, I never had so much fun playing a synth. Presets and tweaking possibilities are gorgeous and endless. I would buy it again.
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