Michigan Synth Works has an open-source 303 processor and a new kit

Call it the Bride of x0xb0x. Michigan Synth Works today teased a new, Arduino-compatible, open-source 303 processor, plus a full DIY kit. They’re both affordable ways to build your own all-analog, modern TB-303 with current components. And it feels like the early spirit of the open x0xb0x is back. The x0xb0x is the device that […]

Basil stereo delay completes Bastl’s PIZZA trio on VCV Rack — all for free

The freeware VCV Rack ports of Bastl’s delicious PIZZA family now include the original Pizza oscillator, Crust drum/percussive voice, and Basil stereo delay. Endless patching pleasures await with these (and don’t forget the free and open source KOMPAS “probability navigator,” too).

Peter Kirn - February 22, 2026

Cosmolab, open DSP development kit, in final hours of crowdfunding

Italy’s Faselunare have done lots of great stuff over the years, and they’re entering the final hours of crowdfunding for Cosmolab, a powerful modular DSP kit powered by Electrosmith’s Daisy Seed. Let’s have a quick look. There are a number of these ideas, and with good reason — choice is at the heart of why […]

Peter Kirn - January 29, 2026