A truly enveloping theater-quality surround-sound experience begins with the center channel. The Studio 520C center-channel loudspeaker raises your home system to the next level with the kind of advanced technology that JBL® engineers developed for professional audio systems. The Studio 520C features a pair of 4-inch (100-millimeter) low-frequency woofers and a high-frequency compression driver surrounded by a glass-filled Bi-Radial® horn, a combination that delivers crisp, focused, dimensionally accurate sound. Using specially developed materials – including a ribbed PolyPlas™ cone and a Symmetrical Field Geometry™ (SFG) magnet assembly for the woofers – the Studio 520C delivers powerful and focused bass sound. A compression tweeter housed within the same type of Bi-Radial horn that JBL engineers developed for concert sound systems delivers high frequencies that are equally distinct and precisely aimed.