Black Lion Audio is a Chicago-based manufacturer of boutique recording studio equipment, founded in 2006 by Nate Bierdeman. The company began as a modification shop, earning the nickname "The Chicago Godfathers of Audio Mods" by hot-rodding popular studio gear to deliver higher performance at accessible prices. Over time, Black Lion Audio expanded from mods into designing and manufacturing its own line of original hardware, all built in Chicago.

The company's product lineup spans mic preamps, compressors, audio interfaces, power conditioners, A/D converters, word clocks, and patchbays. Notable products include the B173 mkII (a portable British-style preamp inspired by the classic 1073 topology), the B12A mkIII (an American-style preamp), the Seventeen FET compressor (a reimagining of the 1176-style limiting amplifier designed in collaboration with Tobias Lindell), and the Revolution series of USB-C audio interfaces featuring proprietary Auteur preamps with Cinemag transformers. Their PG-1 rackmount power conditioner and portable PG-P power conditioner are also widely used in professional studios.

Black Lion Audio gear is trusted by Grammy and Academy Award-winning engineers across major studios in Los Angeles, New York, and Nashville. The brand occupies a distinctive niche in the pro audio world, bridging the gap between affordable consumer gear and high-end boutique equipment by offering vintage-inspired analog character with modern engineering at mid-range price points.

Black Lion Audio has 42 products cataloged on Equipboard, including Preamps, Audio Interfaces, and Power Conditioners. Their gear is featured by 15 artists, with the strongest followings in Rock, Electronic, and Pop. Notable users include Sameer Gadhia, Tim Henson, and Justin Vernon. Black Lion Audio's catalog spans the full price spectrum — from entry-level options to high-end flagships.