Studio Headphones. Samson's latest Studio Reference Series headphones offer exceptional sonic clarity and comfort in a durable, lightweight design that's perfect for studio and mobile applications. The SR450 on-ear headphones offer a closed-ear design for maximum sound isolation. The SR450s also feature premium 40mm drivers with rare earth magnets that generate powerful audio with a wide frequency response. Designed for extended listening sessions, the SR450 headphones feature memory foam cushioned ear cups and headband for an incredibly comfortable, secure fit. With a rugged design and natural frequency response, Samson's new SR450 Studio Headphones deliver excellent sound in the studio, on the streets and everywhere in between.