ML-2 Support Documents BOSS Product Catalog 2008 Forging the Future - Innovation for Creative InspirationBOSS forges into 2008 with an awe-inspiring lineup of effects, digital studios, and accessories. BOSS Guitar Effects Guidebook BOSS offers an extensive selection of guitar effects that can be used by guitarists to get any kind of sound you can imagine. Here's a quick reference guide to the type and function of each unit.