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Moog Subharmonicon Semi-Modular Polyrhythmic Analog Synthesizer , $599.00 - Add to Cart Skip to Product Information

Moog Subharmonicon Semi-Modular Polyrhythmic Analog Synthesizer

60HP Semi-modular Polyrhythmic Analog Synthesizer Module with 2 VCOs, 4 Suboscillators, VCA, VCF, Sequencer, and 32-point Patchbay
Item ID: MoogSubHarm
Moog Subharmonicon Semi-Modular Polyrhythmic Analog Synthesizer
$ 599 .00
Backordered - More On The Way!

We expect more from Moog in just a few weeks. Order today to reserve yours now, risk-free. Estimated November 2026

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Moog Subharmonicon Semi-Modular Polyrhythmic Analog Synthesizer
Backordered - More On The Way!

We expect more from Moog in just a few weeks. Order today to reserve yours now, risk-free. Estimated November 2026

$ 599 .00

All-analog Marriage of Harmony and Rhythm

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Our Product Research Team

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The newest addition to the Moog Mother Ecosystem, the Moog Subharmonicon semi-modular analog synthesizer and sequencer brings all the Moog analog flavor with a rhythm entirely its own. First released in a limited run of 120 units in 2018, the Subharmonicon became an instant cult classic for its unique take on subharmonic synthesis and polyrhythmic sequencing. With two VCOs, each with two suboscillators and a four-pole resonant filter, the Subharmonicon produces creamy all-analog tones with basement-dwelling lows and scorching high-end. Its truly innovative sequencing capabilities use a combination of two four-step sequencers (one per VCO section) and a polyrhythmic generator to create wild, erratic polyrhythms and evolving harmonic chordscapes. Use it as a standalone semi-modular synthesizer or insert it into your Eurorack system for infinite sonic exploration. Synthesists at Sweetwater have been waiting to get their hands on the Moog Subharmonicon, and it was well worth the wait. For a sound design tool like no other, check out the Moog Subharmonicon today!

Legendary ultra-fat Moog synth tones

The Subharmonicon owes its ultra-fat sound to its two analog VCOs — each with two separate suboscillators — which churn out the warmth and grit for which Moog synths are known. The suboscillators divide the fundamental frequency of the VCOs down to four octaves below in 15 subdivisions, and their sawtooth waveshape packs a punchy wallop distinct from sine or square wave suboscillators. By independently tuning the VCOs and subs, you can generate massive chords that track with the VCO frequency, turning this monosynth into a pseudo-polyphonic pad machine. To shape the signal, the Subharmonicon includes a VCA and self-oscillating 4-pole lowpass resonant filter, with variable attack and decay controls. Even without the sequencer and patchbay, the Subharmonicon is a formidable analog synth that produces hearty sub-bass and screaming leads.

Brain-twisting polyrhythmic sequencing

What really sets the Subharmonicon apart from other modular synths is its idiosyncratic sequencer section. The Subharmonicon has two 4-step sequencers, which can impact the VCO or suboscillators’ rhythms and frequencies. While four steps might not seem like a lot, when paired with the Subharmonicon’s polyrhythm section, you can quickly dial up loping, swinging rhythms, with dotted notes, triplets, and out-of-time pulses that twist the sequence in unexpected ways. You can adjust the tempo manually or quantize the rhythm to an external clock to sync to your Moog Mother Ecosystem modules and third-party Eurorack units. From percussive sounds to complex, moving chords, the Subharmonicon is capable of creating textures unlike any other semi-modular synth in its class.

Make it the heart of your Eurorack System

Like the Moog Mother 32 and Moog DFAM, the Subharmonicon is equipped with a 32-point patchbay for expansive routing possibilities. Output the sequencer as control voltage to other Eurorack VCO units and modulators, and control parameters like filter cutoff, pulse width modulation, polyrhythmic controls, and more via external devices, such as LFOs. Or patch within the Subharmonicon itself to explode its creative potential. This 60HP semi-modular synth makes a great desktop unit, and it’s a perfect synth to serve as the centerpiece of your Eurorack system.

Moog Subharmonicon Semi-Modular Polyrhythmic Analog Synthesizer Features:

  • Wide-release version of a limited-edition cult-classic synth
  • 2 analog VCOs and 4 suboscillators
  • 4-pole resonant lowpass filter and VCA with attack and decay controls
  • 2 x 4-step sequencer and polyrhythm generator produce complex sequences
  • Stack oscillators for 6-note pseudo-polyphony
  • Manual and clock-syncable tempo controls
  • Expansive 32-point patchbay for limitless tweakability
  • Complete 60HP Eurorack synthesizer that can easily be installed in a Eurorack case

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.