D & M Holdingings, Inc. specializes in manufacturing and marketing audio and video components. The company offers a variety of products, such as audio and video receivers, DVD players and changers, and CD changers and recorders. Additionally, its product line includes micro systems, stereo receivers, headphones and integrated amplifiers. D & M Holdingings provides various other products that include tuners, home theater systems, turntables and accessories. It offers a range of accessories, including speaker stands, extension cables, microphones and coil cartridges. The company is located in Mahwah, N.J., and manufactures audio and video consumer electronics. It owns the Denon, Marantz, McIntosh Laboratory, Boston Acoustics, Snell Acoustics, D&M Professional, Denon DJ, ReplayTV and Escient brands.