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Eurorack Buchla Frac Modcan A MOTM MU Serge 500 Series AE Modular Pedals

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 692 500 Series modules to choose from. Users build 4713 Racks in this universe.

Forum latest Posts

Some advice on a live rack I did similar cases a few times. I would add some good … Today, 17:52 by VONDENFUNKEN in Racks

Rackbrute 3U modules not booting 770ma hi ive been having problems in my rackbrute - its using jus… Today, 17:37 by toniv in Racks

19" Rackmount Outboard Gear — Any Int... I've been waiting for this forever. It seems like it would … Today, 17:14 by wagoo in ModularGrid

COMPANION CASE FOR SEMI MODULAR SYNTH... Well thanks for the tip. I got the OCHD on order but passed… Today, 12:20 by Prophane in Racks

How do you usually patch CV to your 1... Do you prefer multiple independent CV sources for different… Today, 11:29 by KOTECompany in Modules

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News from the Labs

11. December 2025 Noise Engineering

Granulita Versio

Now available: Granulita Versio is a unique granular chord generator with a beautiful shimmering reverb. Granulita is available as a limited hardware run from your favorite retailers, and as an alternate firmware for Versio owners.

10. December 2025 Earthlink Modular

Trails

Our first module TRAILS is officialy available! Check all the details on: https://earthlink-modular.com/trails/

9. December 2025 Ferry Island Modular

Check out some new videos on Four Seas from Metamyther: https://youtu.be/lJuvDW_LcqU?si=vXGQLKbfw4i7KB1T and Blush Response: https://youtu.be/nrd_Xa39mio?si=PyLVLPfo2geIcHcj

9. December 2025 Feedback

Hello all the DIY builders and long time customers. I thank you all for the support you gave us by building the many kits we delivered. Unfortunately we can't keep the pace with building modules and kits and designing new modules. We will concentrate in selling built modules only and in designing new ones. We will continue to sell kits and PCBs until the stock of PCBs and rare parts will end for each project. Happy last building.

9. December 2025 Erd

WORM

I am delighted to announce the vermicious release of the second batch of ERD/WORM populus edition: https://1010.co.uk/org/ERD.html WORM/populus edition incorporates vocabulary and software changes from WORM/MOON, and also includes improved hardware triggering, and two options (selected by jumpers) providing an ultra-slow mode across all wormings, and supplying an alternative triggering behaviour (one-off trigger of speech utterance).

9. December 2025 Malstrom

Last chance to get a sale through our Three Year Anniversary discount! - Available until 12/12 - Be sure to check out the limited offers! www.malstromaudio.com/store

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Top Modules rated by users

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Elysia Xfilter 500 Ø 4.75 (4)
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Modules have to be rated at least 2 times to appear in this list. Any module with a rating better than Ø 4.34 is considered to be above average.

Show the Top 100 evaluation lists