With the resurgence in popularity of analog and digital synthesizers, the “Eurorack” format for modular synthesizers has exploded – in many ways, Eurorack is a revival of some of the ideas behind many of the first synthesizers ever designed, but with a lot of the kinks ironed out. To understand what a Eurorack synth is (and whether it’s right for you), you first have to understand what a modular synthesizer is. Luckily, we’ve written an article detailing exactly what modular is here, but if you’re short on time, here’s the short version: modular synths are synthesizers that allow the user to connect almost any part of the synthesizer to another, without the predetermined connections found in more conventional synths.