Tiptop Audio
Z2040 VCF - 8HP

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Item: N13-4817

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Z2040 VCF - 8HP


The Tiptop Audio ‘Z2040’ 4-Pole Voltage Controlled Filter is a great sounding analog filter based on the Sequential Circuits Prophet 5 Filter section that gives a lush creamy character to any sound passing through its core. When paired with a snappy envelope like the Z4000, the Z2040’s rubber-like frequency sweeps produce thick bass lines and leads. When modulated in audio rate through its variety of synthesis inputs, the Z2040 gets pushed to the extreme, becoming a growling beast as the forces of the incoming waves and their harmonics all meet at the module’s point of interaction. Bounded within the upper and lower limits of the Z2040’s spectrum, sounds can be tamed into smooth overdrive and saturation. When set with it’s Resonance feedback fully on, the Z2040 becomes a pure sine-core VC-Oscillator that is ideal for making snappy percussive elements or whistling sounds. Tiptop Audio have packed a lot in the Z2040 while maintaining a carefully designed interface for maximum sonic playability.

Under the hood: The heart of the Z2040 is a discrete design 4-Pole Low Pass filter with a similar core to that of the SSM2040 Filter chip used in the Prophet 5 Rev 2 synthesizer and its brother the SSM2044 used in the famous early EMU samplers and PPG synthesizers of the 80’s, both considered by many as “the best sounding filter ever.”

The Z2040’s four modulation inputs are built to handle CV and audio signals, enabling deep modulation of the filter core and passing signals. A VC resonance input is provided to modulate and even clip the sine wave produced by the filter feedback loop. A Frequency Modulation input (FM) provides for dynamic filter sweeps and the unique VC-FM index provides modulation of the incoming FM signals. On top of that the Z2040 provides an audio VCA that can be configured to act upon the input or output of the filter. 


  • Tiptop Audio Z2040 4-Pole Discrete Design Voltage Controlled Filter
  • Featuring a similar core to that of the SSM2040 Filter Chip used in the Prophet 5 Rev 2 Synthesizer and the SSM2044 used in the famous early EMU Samplers and PPG Synthesizers
  • From Lush Creamy Character to Extreme Growling Sounds
  • Self Oscillates turning Z2040 into a pure sine-core VC-Oscillator
  • Cut-Off Frequency Range: All Pass - DC
  • Modulation Inputs built to handle both CV and Audio Signals
  • Audio VCA can be configured to act upon Input or Output of the Filter
  • Controls: Cut-Off Frequency, Resonance (Q), Cut-Off Frequency Modulation, Cut-Off Frequency Modulation Index, Input Gain
  • Inputs: VC-Gain (Input or Output, user configurable), VC-Resonance (Q), VC-Frequency Modulation, VC-Frequency Modulation Index, Audio IN
  • Outputs: Audio OUT
  • Maximum Audio Input Level: 20Vpp
  • Maximum Audio Output Level: 21Vpp
  • Output Impedance: 220 Ω

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  • Eurorack Module
  • 8 HP Width
  • 42mm Depth
  • Current Draw: 20mA @ ±12V (or ±15V *some slight variation in control range may occur at ±15V usage)

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