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Frac Rack is one of the smaller sized formats supported by Blacet and Paia with an active DIY scene.

Show me the Frac modules

There are 397 Frac modules to choose from. Users build 1166 Racks in this universe.

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DawnedInstruments Acadie GOATed module. Buy one while you have the chance by in Modules
nubtown - first time I would dissuade you from using the SPACE-FX; it is too lar… by in Racks
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Oxi Instruments OXI Pipe MKII Is the only difference from mk1 the cable? With no differen… by in Modules
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News from the Labs

CubuSynth
25 Jun 2025 CubuSynth
Last chance to get a refreshing 25% OFF everything!🥭🎛🍓 www.cubusynth.com only until June 30 
Archaea Exchange Expander
24 Jun 2025 Archaea
Exchange Expander is now available as a 1U module. This module expands the inputs/outputs of Exchange and can send 8 signals across the back of a rack. https://archaea.co.uk/expander-1u 
Teia RipWave
22 Jun 2025 Teia
Introducing RipWave, a compact 6HP Analog VCO designed for rich sonic exploration in a small footprint. At the heart of its design is the Transform knob: a unique, voltage-controllable parameter that shapes the character of each waveform. It offers a wide range of timbral variation, from saturation to wavefolding, harmonic morphing, and pulse width modulation, all in a single control. 
AMSynths AM904C Filter Coupler
21 Jun 2025 AMSynths
AMSynths announces the fabulous AM904C filter coupler for adding amazing bandpass and band reject sounds to your Moog modular. The module connects to the Behringer 904A and B filter modules internally, and requires a small amount of SDIY. Three wires connect to the signal input, output and CV cutoff, with a 6-way IDC cable interconnects the modules from the rear. 
Wildfire Laboratories Kinetic Work
20 Jun 2025 Wildfire Laboratories
The WFL-459 “KINETIC WORK” is a two-input vactrol low-pass gate and distortion module. It’s our take on the classic active LPG module, featuring two inputs, switchable filter frequency responses, and “THE WILDFIRE SPECIAL” - dual infrared LED distortion. Kinetic Work is 6HP and skiff-friendly. 
Older News →

Top Modules rated by users

  1. STG Soundlabs Mankato Filter Ø 5.00 (4)
  2. Blacet I/O Ø 5.00 (3)
  3. BugBrand PT Delay Standard 2015 Ø 5.00 (3)
  4. Blacet Dual Linear VCA Ø 5.00 (3)
  5. Metalbox VC Divider Ø 5.00 (2)
  6. BugBrand SYN2B Ø 5.00 (2)
  7. BugBrand PRC2B Ø 5.00 (2)
  8. Blacet Super VCA Ø 5.00 (2)
  9. Cynthia Zeroscillator Ø 5.00 (2)
  10. Metalbox Matrix Mixer Ø 5.00 (2)
  11. BugBrand CTL1 Ø 5.00 (2)
  12. Metalbox Wave Multiplier Ø 5.00 (2)
  13. BugBrand PRC3A Ø 5.00 (2)
  14. Livewire Electronics FrequenSteiner Ø 5.00 (2)
  15. BugBrand SEQ2A Ø 5.00 (2)
  16. Synthesis Technology MOTM 1800 Looping ADSR Ø 5.00 (2)
  17. Blacet Klangwerk Ø 5.00 (2)
  18. Metalbox Burst Generator Ø 5.00 (2)
  19. Metalbox Gate Seq Ø 5.00 (2)
  20. Metalbox Super Psycho LFO Ø 5.00 (2)
  21. BugBrand SYN1 Ø 5.00 (2)
  22. Blacet Morphing Terrarium Ø 5.00 (2)
  23. BugBrand ENV1 Ø 5.00 (2)
  24. Wiard Joystick Axis Generator Ø 5.00 (2)
  25. Blacet F355 Morphing Dual LFO Ø 5.00 (2)

Modules have to be rated at least 2 times to appear in this list. Any module with a rating better than Ø 4.35 is considered to be above average.

Show the Top 100 evaluation lists

Popular Modules in racks

  1. BugBrand Frequency Shifter in 28 Racks

The list of Popular Modules is generated from Modules that have been added to Racks AND have been released in the specified time period.

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