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Behringer MonoPoly 4-voice Analog Synthesizer , $549.00 - Add to Cart Skip to Product Information

Behringer MonoPoly 4-voice Analog Synthesizer

37-key, 4-voice Mono/Paraphonic Analog Synthesizer with 4 VCOs, VCF, 2 LFOs, 2 Envelopes, Sync and Cross Modulation, and Arpeggiator
Item ID: BehrMonoPoly
Behringer MonoPoly 4-voice Analog Synthesizer
Available Soon!

More of this item is on the way from Behringer. Order today to reserve yours now, and we'll ship it as soon as it's available. Estimated October 6, 2026

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Behringer MonoPoly 4-voice Analog Synthesizer
Available Soon!

More of this item is on the way from Behringer. Order today to reserve yours now, and we'll ship it as soon as it's available. Estimated October 6, 2026

Tap into the Epic Synth Sounds of the ’80s

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Our Product Research Team

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By the dawn of the 1980s, analog synthesis had matured to a level of sophistication that nascent digital technology could scarcely hope to match. In the feverish musical creativity of early ’80s, the clangorous sounds of early digital synths were offset by the supremely lush sounds of a new crop of analog synthesizers, both joining forces to spearhead the synth pop insurgency of the coming decade. One such analog synth, the MonoPoly, made its debut in 1981. Equipped with no less than four oscillators (each with multiple waveforms), the MonoPoly was capable of insanely fat sounds and prodigious bass that could blow holes through walls. As good as it was, it was, curiously, only on the market for three years. Today, vintage MonoPolys are quite rare — and rather pricey even if you can find one. But fret not! Sweetwater is proud to present the Behringer MonoPoly, a meticulous reimagining of the coveted beast, seamlessly infused with modern features and reliability.

Four oscillators for insanely fat sounds

The impossibly rich sound of the Behringer MonoPoly is a function of its four true-to-the-original voltage-controlled oscillators (VCOs). While many ’70s synths sported two VCOs, having access to three was considered a luxury. The ability to sync and subtly detune oscillators so that they “rubbed” against each other are cornerstone synthesis techniques; having four VCOs to deploy gives you a formidable sonic arsenal to forge a broad range of unique signature sounds.

Vintage authenticity

The Behringer MonoPoly’s pure analog signal path is based on the authentic MonoPoly circuitry as well as other exceptional VCO, VCF (voltage-controlled filter), and VCA (voltage-controlled amplifier) designs from the 1980s. These are the sounds that drove iconic hit records from artists such as Depeche Mode and Vince Clarke. Today, the sounds of the ’80s are alive and well in the Behringer MonoPoly. And they can be yours for a song!

Mono or 4-voice paraphonic

Another singular feature of the Behringer MonoPoly — again, faithful to the original — is its ability to split its four voices. The MonoPoly’s variable architecture allows you to use it in either monophonic or 4-voice “Poly” (paraphonic) mode, in which the four oscillators are allocated to individual notes that are then summed to a shared monophonic signal path. In practice, this gives you a huge amount of musical flexibility. From fat basses and searing leads to jazzy chord voicings, MonoPoly has you covered.

Loaded for bear

But there’s more! In addition to its four VCOs, MonoPoly is also outfitted with a classic VCF, two LFOs (low-frequency oscillators), two envelopes, sync and cross modulation, and an arpeggiator. It’s all wrapped up in a roadworthy, vintage-inspired chassis with a control panel you can angle to taste, satisfying knobularity for real-time, hands-on tweakery, 37 great-feeling keys, exhaustive professional I/O, and prototypical wooden end caps. Get your hands on the Behringer MonoPoly. Trust us: you won’t want to let go!

Behringer MonoPoly 4-voice Analog Synthesizer Features:

  • Modern reimagining of a legendary ’80s synth
  • Mono and 4-voice paraphonic modes
  • Variable-angle control panel
  • 37 semi-weighted, full-sized keys
  • 4 VCOs, each with 4 selectable waveforms
  • VCF, 2 LFOs, 2 envelopes, sync and cross modulation
  • Full-featured arpeggiator
  • MIDI in/out/thru (5-pin DIN)
  • USB (Type B) MIDI
  • Main output: 1/4-inch TS, unbalanced
  • Headphones: 1/4-inch TRS, stereo
  • External control inputs: Arpeggiator Sync in, Portamento, VCF cutoff freq mod, VCO freq mod, Trigger in, Trigger in
  • Internal control outputs: Trigger out, CV out, Switch

Warranty Info

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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.