Protech Audio Corporation manufactures professional audio equipment including the world's best automatic mixing system, supervisory systems, level controls, distribution amplifiers, and mixers.

A leader in audiovisual and broadcast integrated systems. Audio-Video Corporation has remained dedicated to its conceptual foundation of character, integrity, quality and client commitment for over half a century. These core values are the cornerstones which enable us to provide unparalleled client support and technical innovation.

THAT Corporation designs and manufactures high quality technology in the form of integrated circuits, licensed intellectual property and semiconductor fabrication. THAT's line of high performance analog ICs includes our pro audio industry leading VCAs, RMS-level detectors, Analog Engines, balanced line receivers and drivers and more. Under the dbx-tv brand, THAT licenses 'Total Volume' a DSP solut

Niles Audio is a company focused on providing high-quality products that integrate and distribute home entertainment for the residential and light commercial markets.

Makers of PCI sound cards and Firewire digital audio recording interfaces for musicians, producers and audio professionals