Synthrotek is an essential brand to know about for anyone who's interested in getting into the world of Eurorack and modular synths. The Portland-based firm produces all sorts of useful modules, kits and modular accessories for the knob-crazed public, such as their line of powered Eurorack cases like the Power Lunch. For the DIY-inclined, Synthrotek's module kits are a fantastic way to learn more about the inner workings of synth components and save money on completed modules in the process.