Direct Sound is a St. Louis, Missouri-based headphone manufacturer founded by Steve Rois in 2001. The company's origins trace back to inventor John Gresko, who conceived the idea for isolation headphones during his decade-long career as a session drummer and vocalist in Los Angeles. One of the few remaining headphone manufacturers based in the United States, Direct Sound specializes in passive noise isolation technology — blocking external sound without the electronics required by active noise-canceling designs.

The company's flagship Extreme Isolation headphone line includes the EX-29 Plus (offering over 29 dB of isolation) and the EX-25 Plus (25 dB), both widely adopted by drummers and studio engineers who need to monitor audio in loud environments without cranking volume to unsafe levels. The lineup also includes the DS-73 semi-open and DS-74 closed-back critical listening headphones, the Studio Plus monitoring headphones, and the HP25 Plus passive hearing protection. All headphones feature a field-serviceable design with user-replaceable parts. Beyond headphones, Direct Sound also manufactures condenser and ribbon microphones, premium cables, and accessories.

Direct Sound headphones have found a dedicated following among drummers and studio professionals. Notable users include drummer Terry Bozzio and Megadeth drummer Shawn Drover, and the headphones carry a Blue Man Group endorsement. The brand's emphasis on high passive isolation with flat frequency response has made the Extreme Isolation line a staple in recording studios, broadcast facilities, and live performance settings.

Direct Sound has 13 products cataloged on Equipboard, including Headphones & In-Ear Monitors, Condenser Microphones, and Ribbon Microphones. Their gear is featured by 2 artists, with the strongest followings in Rock and Pop. Notable users include Paul Gilbert and Ross Federman.