Denon is a legendary Japanese audio electronics manufacturer established in 1910 as Nippon Denki Onkyo by Frederick Whitney Horn, making it one of the oldest audio companies in the world. Originally producing cylinder audio media and players, Denon has evolved into a global leader in professional and consumer audio equipment. The company has undergone several ownership changes, operating under Nippon-Columbia for decades before being spun off in 2001, merging with Marantz in 2002 to form D&M Holdings, then being acquired by Sound United LLC in 2017, and currently operating under Samsung Electronics ownership. Denon's comprehensive product portfolio includes high-end AV receivers, professional and consumer headphones, wireless music systems, Blu-ray players, and phonograph cartridges. The company has achieved numerous technological milestones, including producing Japan's first professional disc recorder and introducing the world's first THX-EX home theater system in 1999. With over a century of audio innovation, Denon continues to serve both professional and consumer markets worldwide, maintaining its reputation for quality engineering and cutting-edge audio technology.