Boasting of acclaim from the audio industry, the PMC DB1 main speakers deliver high-power sound that is typically produced by stereo speakers double the size. The quality of sound output, particularly the deep bass control, makes the speakers suitable for pop, rock, dance, or classical music. The deep bass is created from the transmission line bass technology in these PMC DB1 speakers. Unlike competitors, the PMC DB1 speakers do not rely on the cabinet to create bass output. Instead, users get the same bass quality whether the speakers are stacked on a shelf or mounted on a wall. The PMC DB1 main speakers are commonly used in commercial settings and studios. Broadcasters such as BSkyB, BBC, Fluid Mastering, Metropolis Studios are just some of the names taking advantage of the depth, clarity of bass, and quality sound staging of these stereo speakers. The PMC DB1 speakers measure 11.4 inches (29 cm) in height, 6.1 inches (15.5cm) in width, and 9.4 inches (24 cm) in depth.