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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 684 500 Series modules to choose from. Users build 4652 Racks in this universe.

Forum latest Posts

Suggestions on my almost complete rack I cant see a concept in you rack. Do you have one? M… Today, 00:12 by VONDENFUNKEN in Racks

Faceplate for Mordax DATA According to Perfect Circuit, they expect the next shipment… Yesterday, 18:41 by bitstream in Modules

Weirdo Bastl rack - what am I missing? the Neo Trinity has 6 LFO/env outs with gesture recording i… Yesterday, 11:07 by recycledairplane in Racks

Favorite single-manufacturer voice? Please share... 🙏 How did you fill things out? Yesterday, 04:04 by TheScritch in Racks

Why are so many Moog Subharmonicons u... Needs music theory, which many do not have / are unwilling … Yesterday, 03:48 by TheScritch in Modules

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News from the Labs

30 Oct 2025 Archaea

Halloween sale at archaea.co.uk 20% off everything until Monday 3/11/25.

Tokyo Tape Music Center 5 Step Sequencer

29 Oct 2025 Tokyo Tape Music Center

A new firmware update for Mimetic Digitwolis is now available! This update includes two flavors of microtonal scales, improved editing workflows, easier scale editing, new ways to randomize, MIDI improvements, bug fixes, and more. Learn more at our website!

27 Oct 2025 Lower West Side Studio

Only 4 days left to save and win with Lower West Side Studio's Spooky Sale and Prize Draw. Follow the link for details; https://richsstudioproject.wpcomstaging.com/2025/10/01/ss2025/

27 Oct 2025 Tre Modular

We’re happy to share some good news for our friends across the Atlantic. Tre Modular is once again shipping to the United States. www.tremodular.com

27 Oct 2025 Wildfire Laboratories

Wildfire devices are now available via Perfect Circuit! https://www.perfectcircuit.com/wildfire-laboratories

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Top Modules rated by users

Elysia Nvelope 500 Ø 5.00 (4)
API 550A Ø 5.00 (4)
Serpent SB4001 Ø 5.00 (3)
Solid State Logic ULTRAVIOLET Stereo Equaliser Ø 5.00 (3)
Smart Research C1LA Ø 5.00 (3)
Classic API VP28 Ø 5.00 (3)
Kush Audio Electra Ø 5.00 (2)
Pete’s Place Electrodyne 501 Ø 5.00 (2)
Louder Than Liftoff Chroma Ø 5.00 (2)
Shadow Hills Dual Vandergraph Ø 5.00 (2)
Rupert Neve Designs 535 Ø 5.00 (2)
IGS Audio S-Type 500 Ø 5.00 (2)
WES Audio Rhea Ø 5.00 (2)
Louder Than Liftoff Chop Shop Void Corp Edition Ø 5.00 (2)
FMR Audio RNC 500 Ø 5.00 (2)
Elysia Xfilter 500 Ø 4.75 (4)
Elysia Xpressor 500 Ø 4.67 (6)
DIYRE Colour Palette MK2 Ø 4.67 (3)
Elysia Karacter 500 Ø 4.50 (4)
Sound Skulptor MP573 Ø 4.50 (2)
API 512c Ø 4.50 (2)
Kush Audio Electra 500 Ø 4.50 (2)
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 4.34 is considered to be above average.

Show the Top 100 evaluation lists