The Form Factor BI1000 DI Mk III is a 1000-watt bass amp head built for clean authority, tight low end, and mix-ready articulation. In this IN THE SHED breakdown, we go beyond specs and explore real-world application — gain structure, limiter behavior, midrange strategy, cab pairing, and how this head translates on stage and in the studio. If you need power without sag and clarity without harshness, this deep dive is for you.