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Tiptop Audio Fold Processor Eurorack Wave Multiplier Module - White , $179.00 - Add to Cart Skip to Product Information

Tiptop Audio Fold Processor Eurorack Wave Multiplier Module - White

12HP Voltage-controlled Wave Multiplier/Sub-octave Generator Eurorack Module with Wave Folding, Bias Tweaking, Sub-harmonics, Extensive CV Control, and Split Outputs
Item ID: FoldProcessor
Tiptop Audio Fold Processor Eurorack Wave Multiplier Module - White
$ 179 .00
We Can Get It!

While this isn't an item we normally stock, we can still get it due to our great relationship with Tiptop Audio. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated December 2026

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Tiptop Audio Fold Processor Eurorack Wave Multiplier Module - White
We Can Get It!

While this isn't an item we normally stock, we can still get it due to our great relationship with Tiptop Audio. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated December 2026

$ 179 .00

Mad Harmonics Manipulation Module

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Our Product Research Team

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From sweet sub-octaves to wicked multiplier madness, Tiptop Audio's Fold Processor packs a ton of 'tude in a 12HP Eurorack module. It's a classic diode-based harmonic generator that "folds" an input signal and multiplies it before subdividing it to create cool square-wave subharmonics. Sweetwater Eurorack addicts tend to hang on to the Fold Processor because it can do amazing things to even the simplest signal you feed it — all by simply generating standard sine, triangle, sawtooth, and square waves.

Fold in simple waves for complex results

The Fold Processor takes up to two inputs. Step one, your signal hits the fold circuit, which lays on one of the basic waveforms — sine, triangle, sawtooth, or square, and anything in between. What's awesome about this circuit is that you can control the fold waveform via CV, allowing you to craft continuously morphing tones. Sweetwater synth geeks particularly like the results of feeding this CV in sample and hold.

Inject your tone with bias point manipulation

Simply adjusting the bias point of your signal can have a dramatic effect on your tone. With the twist of a knob, the Tiptop Audio Fold Processor can take your sound from gentle and smooth to hairy and a bit rude. Add CV control, and you get a whole extra palette of sound manipulation. Any way you apply it, the Inject phase of the Fold Processor preps your sound for the glorious sub-harmonic stage to come.

4-stage subharmonics add richness and depth

Each of the four subharmonic stages of the Fold Processor affects the signal one octave apart. You can blend and mix these harmonic generators to develop everything from ultra-fat bass patches to epically glitchy effects. And if you dig square lead tones, then you'll love what this Eurorack module can do for your rig. Add to that a separate Subdivide output, and you can take this tone back to the rest of your synth for extra manipulation.

Tiptop Audio Fold Processor Eurorack Module Features:

  • A powerful 3-stage harmonics generator in a 12HP x 42mm Eurorack module
  • Capable of multiplying signals and adding subharmonics for a broad range of tone manipulation
  • Voltage-controlled Fold section lets you blend sine, triangle, sawtooth, or square, and anything in between into your signal
  • Inject section lets you shift the bias point (manually or via CV) for additional texture
  • Subharmonic section features 4 octave harmonic generators 1 octave apart
  • Craft anything from sweet sweeping tones to sheer square-wave brutality
  • Subdivide output lets you split off just your subharmonics for separate external processing

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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.

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