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Behringer MonoPoly Analog Polyphonic Synthesizer

with 37 Full-Size Keys




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SKU: 000-E3H04-00010

    Product Description

    The Behringer MonoPoly is an analog 4-voice polyphonic synth. It boasts 37 full-size keys, VCF, 2 LFOs, 4 VCOs, sync/cross modulation, 2 envelopes and an arpeggiator. 

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    Paying Homage 

    First introduced in the '80s - and only available for 3 years in total - the original Mono/Poly synth established itself as a go-to piece of gear for many electronic artists of the era. This has made it a sought after instrument for many collectors. 

    However, thanks to this affordable cloning of the original model, synth-heads everywhere can experiment with the same great sounds and features that made the first Mono/Poly tick. From the pure analog signal path modelled on the originals circuitry, to '80s VCA, VCF and VCO designs, and versatile key modes (for polyphonic, duophonic and monophonic styles), experiment with the very same engineering and sonic tools.  

    Sound Shaping 

    These all contribute to intuitive and fun shaping of your sounds that are heavily influenced by old-school electronica. Play everything from dynamic, intriguing lead tones, to punchy, sludgy bass and bright ambiences.

    With four VCOs - each with four switchable waveshapes - there's plenty of tonal building blocks available. You can adjust each VCO's level, tuning and octave with dedicated knobs too; they can be blended with differing waveshapes as well for even more developed sounds. 

    A VCA and VCF have also been incorporated into the MonoPoly. Both contain an ADSR - ensuring you can tweak the shape of your envelope. This results in contrasting notes, whether that's longer, drawn out drones, or sharp percussive bursts. Further augmentation of these sounds comes in the form of the noise knob, which as its name suggests, adds white noise. 

    Keys & Controls  

    You'll be playing these sounds using the 37 semi-weighted keys. Modulation depth is altered via the MG1 wheel, while the pitch can be decreased or increased from the bend wheel. Add to this 62 buttons and knobs in total (positioned on the tilting top panel), outputs and inputs for oscillator pitch, filter cutoff and more, and there's a tonne of creative avenues available to you here. 


    • Style: Analog
    • Oscillators: 4 (32.7 Hz - 4.186 Hz)
    • MG1: 0.1 Hz - 20 Hz
    • MG2: 0.1 Hz - 30 Hz
    • Modes: Poly, Unison Share, Chord Memory, Unison Mono 
    • VCF: Low Pass Filter (24 dB/Oct. Slope)
    • Envelopes: VCF, VCA
    • MIDI Channels: 16 
    • Impedance: 700 Ohms 
    • Connectivity: USB (MIDI)Type B, MIDI in/out/thru 5-pin DIN
    • Headphones: x1 1/4" TRS, Stereo
    • Main Output: x1 1/4" TS (Unbalanced)
    • Maximum Output: Level +6 dBu
    • Maximum Output Level: -2 dBu

    Written by Will Brook-Jones

    Key Size
    Full Size
    CV Compatible
    Trade Doubler Group ID
    Key Action
    Semi Weighted
    Number of Keys
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    Customer Reviews


    68 reviews





    Mr. David Preece24th Mar 2022

    Value 5Looks 5Durability 5Sound 5

    Trusted Customer18th Feb 2022

    Excellent synth. I especially like how the arpeggiator works with the VCO's.

    Value 5Looks 5Durability 5Sound 5

    Mr Lee Mitchell13th Jan 2022

    Fat warm sound, easy to program.

    Value 5Looks 5Durability 5Sound 5

    Trusted Customer4th Jan 2022

    It sounds amazing. Build quality is excellent. I've been looking to buy the original for years, but the silly price tag and the possibility of it going wrong has put me off. So the behringer Monopoly is great value for money and should be reliable. The only slight downside is that I would have liked it a little larger in size. Say another octave on the keyboard and the knobs spaced out a little more.

    Value 5Looks 4Durability 5Sound 5

    Mr Andy Compton16th Dec 2021

    Value 5Looks 5Durability 5Sound 5

    Mr David Carpenter15th Dec 2021

    Behringer MonoPoly: firstly, before you even plug it in, it is a beautiful instrument. It is physically heavy, beautiful to look at and very well made. It is well packaged too. The power supply cable is a bit flimsy, but other than that, it is a really beautiful instrument for something at this price point. In terms of sound, it is capable of sounding really thick and full, and has a lot more depth than is apparent from the basically simple control panel. Playing polyphonically with just 1 oscillator per note is already thick sounding. It really sounds good, I thoroughly recommend it if this is what you are looking for, though to state the obvious it is a very different synthesizer to a digital, preset-laden polyphonic synth with internal effects etc. I have wanted a MonoPoly since I first saw one as a kid in the shops in the 1980's, but had never played one. I am very glad to have finally been able to buy one. I couldn't give a hoot that it is not the Korg original, I much prefer to have a modern version. If Korg released a modern version then that is a different argument, but I for one am very grateful to Behringer for bringing this synth back.

    Value 5Looks 5Durability 5Sound 5

    Mr Luke Tomkinson9th Oct 2021

    Value 5Looks 5Durability 5Sound 5

    Sian Howard25th May 2021

    It seems very well made but its ultimate durability - who knows, that's a question for the future. Other than that, this is an incredible remake job by Behringer. I did own an original Monopoly long ago and, although I am relying on my memory, this sounds just like it to me. I am actually glad they didn't stick any of their effects or a sequencer on this one, since those are all better applied externally.

    Value 5Looks 5Durability 4Sound 5

    James Poole20th May 2021

    I am rapidly become a big fan of Behringer’s products. I have 7 of their clone synths & a drum machine clone now (all of which I purchased from Anderson’s) & they are all awesome. The Monoploy sounds fat as all hell. It’s not something I am as familiar with, but, from what I can tell, it’s pretty convincing like the original vintage Korg.... at a fraction of the price. If your considering buying this synth, stop considering & start buying.

    Value 5Looks 5Durability 5Sound 5

    Mr Joseph Cooke7th May 2021

    Value 5Looks 5Durability 5Sound 5

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