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The 500 Series is not a modular synthesizer format but a modular audio processing stack and was originally developed by API.

Show me the 500 Series modules

There are 680 500 Series modules to choose from. Users build 4509 Racks in this universe.

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News from the Labs

Shakmat Bishop's Miscellany mk2
2 Jul 2025 Shakmat

Bishop's Miscellany mk2

Hi everyone, we're delighted to inform you we just released our Bishop's Miscellany mk2, named "Instant Riff maker" by our users. The Bishop's Miscellany mk2 is the successor of our very first module we released 10 years ago 🎉 More about it here :https://www.youtube.com/watch?v=S0SEiSkem0w&list=PLQAd5krDiiT4J1i5KG4vlOKuCsYlToV46 
Alfa Delta
28 Jun 2025 Alfa Delta
This is the perfect companion for Dionisi and Metamorf : Faderfox EC4 (https://www.faderfox.de/ec4.html). This is a faderbox that can send 14 bit MIDI CC messages, for fine resolution of frequency, without zipper noise. I updated Dionisi firmware to 2.2 (https://alfadelta.be/dionisi.html#downloads) and Metamorf firmware to 1.1 (https://alfadelta.be/metamorf.html#downloads). These latest firmwares also fix some issues with the quantisers. 
WGD Modular pho
28 Jun 2025 WGD Modular

pho

Say hi to Pho – a super compact 4HP quad mute module! Built for muting triggers, clocks, or CV with ease. Passive by default, no power required. Simple, effective, and perfect for hands-on control in any rack. 
Radical Frequencies Dual VCA Lin Log
26 Jun 2025 Radical Frequencies

Dual VCA Lin Log

Radical Frequencies New Dual Vca Lin Log in 8hp and 46mm depth High quality sound module with 2 separate VCAs , one linear and one logarithmic. Check my website for more info ! https://www.radicalfrequencies.com/index.php/dual-vca-lin-log 
CubuSynth
25 Jun 2025 CubuSynth
Last chance to get a refreshing 25% OFF everything!🥭🎛🍓 www.cubusynth.com only until June 30 
Liquid Sky d-vices
25 Jun 2025 Liquid Sky d-vices
an updated V4CO manual is available. https://www.liquidskyartistcollective.com/uploads/8/2/4/5/8245388/v4co-manual-105.pdf 
Older News →

Top Modules rated by users

  1. Elysia Nvelope 500 Ø 5.00 (4)
  2. API 550A Ø 5.00 (4)
  3. Smart Research C1LA Ø 5.00 (3)
  4. Classic API VP28 Ø 5.00 (3)
  5. Solid State Logic ULTRAVIOLET Stereo Equaliser Ø 5.00 (3)
  6. Serpent SB4001 Ø 5.00 (3)
  7. Pete’s Place Electrodyne 501 Ø 5.00 (2)
  8. Louder Than Liftoff Chroma Ø 5.00 (2)
  9. WES Audio Rhea Ø 5.00 (2)
  10. Shadow Hills Dual Vandergraph Ø 5.00 (2)
  11. Rupert Neve Designs 535 Ø 5.00 (2)
  12. IGS Audio S-Type 500 Ø 5.00 (2)
  13. Louder Than Liftoff Chop Shop Void Corp Edition Ø 5.00 (2)
  14. FMR Audio RNC 500 Ø 5.00 (2)
  15. Kush Audio Electra Ø 5.00 (2)
  16. Elysia Xfilter 500 Ø 4.75 (4)
  17. Elysia Xpressor 500 Ø 4.67 (6)
  18. DIYRE Colour Palette MK2 Ø 4.67 (3)
  19. Elysia Karacter 500 Ø 4.50 (4)
  20. Sound Skulptor MP573 Ø 4.50 (2)
  21. Kush Audio Electra 500 Ø 4.50 (2)
  22. API 512c Ø 4.50 (2)
  23. Trident Audio Developments 80B 500 Series EQ Ø 4.50 (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. Cranborne Audio Brick Lane 500 in 59 Racks
  2. Solid State Logic B-DYN 500 Series Dynamics Module in 44 Racks
  3. Elysia xmax 500 in 36 Racks
  4. Cranborne Audio Vintage Wallpaper in 20 Racks
  5. Drawmer MQ-2 in 12 Racks
  6. Other/unknown Hlabs EQ169 in 12 Racks
  7. WES Audio MIMAS Gemini in 9 Racks
  8. Drawmer MQ-1 in 7 Racks
  9. Stam Audio 3A-5 in 5 Racks
  10. Other/unknown Hlabs Pré 169 in 4 Racks
  11. Stam Audio SA-1B5 in 4 Racks
  12. AudioScape CL-20 in 3 Racks
  13. Sound Skulptor PAD500 in 3 Racks
  14. Other/unknown Locomotive Audio Power-Mu 500 in 3 Racks
  15. Heritage Audio OST-8_ADAT (Front) in 2 Racks
  16. Other/unknown Dizengoff Audio Type 140 in 2 Racks
  17. Other/unknown T805 in 2 Racks
  18. SM Pro PEQ505 in 2 Racks
  19. Elysia Xfilter 500 Vinyl Allstars in 2 Racks
  20. Bereich03 Filterbank in 1 Racks
  21. HRK CS655 in 1 Racks
  22. IGS Audio EQM500 in 1 Racks
  23. Chandler Germ 500 MKI in 1 Racks
  24. Millennia Media NSEQ-HF 500 Series EQ in 1 Racks
  25. Other/unknown Locomotive Audio 86B-1 in 1 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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Hot Racks people talk about

Change Log Heider® FD312 H2 1dB, ROCLEM™ MEC32, EQM500, TG2-500, MIMAS Gemini, Locomotive Audio Power-Mu 500, Locomotive Audio 86B-1, Germ 500 MKI, Insigna and Falcon

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