American-Built Bass Amplifiers & Cabinets

Hand-Crafted in California

Form Factor Audio designs and builds professional bass amplifiers and bass speaker cabinets in the United States — engineered, assembled, and tone-tested by hand in Orange County, California. The Bass Instinct Series™ pairs the high-headroom Bi1000Di and Bi500Di Mark III Class-D bass amp heads with three complete cabinet lines: Ceramic for classic Baltic-birch authority, Neo/Lite for full-scale professional tone at roughly half the weight, and Hybrid LH for stone-like rigidity from a proprietary triple-ply enclosure. Every rig is a made-to-order, hand-crafted instrument built to survive the road and hold its value for years.

Every cabinet is CNC-milled, internally cross-braced, and finished in dual-component polyurethane, with Italian neodymium transducers and genuine Neutrik® connectors. From the one-trip 1×12 to the stage-filling 4×10, Form Factor rigs are voiced to translate your signal chain honestly — clean lows, articulate mids, and smooth, controllable highs — for the gigging and touring bassists who refuse to choose between portability and power. The lineup extends to American-built stage and studio instrument stands for bass, guitar, violin, and mandolin, each hand-finished in California in your choice of custom paint or transparent-lacquer color. American-made, road-proven, and backed by a 2-year limited warranty with direct support and original parts shipped worldwide.