RapcoHorizon is a cable and audio accessories manufacturer headquartered in Jackson, Missouri. The company traces its roots to two predecessor firms — Rapco International and Horizon Music Inc. — each of which spent more than 25 years making audio interfacing products before merging in late 2006 to form The RapcoHorizon Company. The combined operation brought together several specialized divisions, including Major Custom Cable (fiber-optic and data telecom), Horizon Wire & Cable (wire extrusion), and Oculus Designs (home theater and custom installations). The brand is part of the ACT Entertainment portfolio.

RapcoHorizon manufactures a broad range of cables and connectivity products spanning instrument, microphone, speaker, patch, and data/telecom categories in both bulk wire and pre-assembled formats. Their RoadHog series of instrument and microphone cables is built around pure copper conductors and heavy-duty PVC jacketing aimed at touring musicians. The Dominator line targets higher-end users with multiple proprietary wire types and a "Tuned Series" of guitar cables that incorporate additional components inside the connectors to shape the signal between guitar and amplifier. The company also produces stage snakes, DI boxes such as the DB-1 passive DI, and custom cable solutions through an in-house Custom Shop. Their products are widely used by touring sound companies, recording studios, sound contractors, system integrators, and working musicians.

Rapco Horizon has 3 products cataloged on Equipboard, including Audio Interfaces and Instrument Cables.