Used API 550B Rack Equipment

Used API 550B rack EQ in great condition, delivering the classic API punch and musical tone shaping studios rely on. This 4-band parametric equalizer features the renowned Proportional Q design, selectable frequency points per band, and up to ±12 dB of boost/cut for precise yet smooth control. Built for professional racks with rugged construction and balanced audio performance, it’s an ideal choice for enhancing vocals, drums, guitars, and full mixes with unmistakable API character.