Form Factor Audio is a California-based manufacturer of bass amplifiers, speaker cabinets, and accessories, operating as part of the Lera Audio Group. The company designs and hand-assembles its products in the United States, milling cabinet enclosures on CNC machines before final assembly at its plant in California. Form Factor positions its gear toward professional bass players who want transparent, full-range reproduction of their instrument's tone rather than a heavily colored amp voicing.

The lineup is built around the Bass Instinct series. Cabinets come in both ceramic and lightweight neodymium configurations, including 1x12, 1x15, 2x10, and 4x10 designs (1B12, 1B15, 2B10, 4B10 and their L-suffixed neo counterparts). Each cabinet uses a 1.4-inch compression driver paired with a horn instead of a conventional tweeter, which the company credits for its high-end clarity. The amplifier line consists of the Bi500Di and Bi1000Di Mk III heads, built around proprietary power modules.

The company also offers the Form Factor Stage & Studio line of stands, plus speaker cables, instrument cables, and cases. Construction details such as dual-component polyurethane coatings and military-spec wiring are emphasized as part of its durability-focused approach, and cabinets carry a three-year warranty.

Form Factor has 3 products cataloged on Equipboard, including Bass Amplifier Heads. Their gear is featured by 2 artists, with the strongest followings in Pop, Electronic, and Hip Hop. Notable users include George Pajon, Jr. and Amos Heller.