Krell Industries

Krell Industries Inc., founded by its C.E.O. and chief designer Dan D'Agostino, is one of America's largest manufacturers of high-end audio systems. While most of their acclaim has come from their power amplifiers and CD players (their flagship model being the Master Reference Amplifier with a price of roughly $100,000), they also make preamplifiers, loudspeakers, subwoofers, and Super Audio CD players.

For model years 2014 to 2020, the Acura RLX featured an optional Krell audio system.