DI boxes, transformers, impedance, gain structure, and everything between the source and the console.
Signal Path
Everything on your stage that isn't a microphone gets to the console through a DI. What's inside the box, why the transformer is the best part, and how to stop piezo quack and ground hum with physics instead of luck.
Signal Path
The humble direct box is the most misunderstood object on your stage. Inside that steel brick is a hundred years of transformer physics, a war over input impedance, and the answer to why the acoustic act sounds like a wasp in a tin.