Rockford Corporation designs, markets, sells and distributes high-performance mobile audio products. The company s mobile audio products are sold primarily in the worldwide car audio aftermarket to consumers who want to improve their existing car audio systems, and through original equipment manufacturer relationships with select vehicle manufacturers. It markets its mobile audio products under its Rockford Fosgate, Rockford Acoustic Design, Lightning Audio and Installedge.com brand names, selling products that include digital and analog amplifiers, speakers and accessories. Audio Innovations, a subset of the company acquired in 2001 and located in Stillwater, Okla., manufactures, markets and distributes branded aftermarket car audio enclosures under the names of Q-Logic, Q-Forms and Q-Customs. Distribution is includes more than 1,000 specialty dealer locations and major retailers, such as Best Buy, Circuit City and Crutchfield. Rockford Corporation is headquartered in Tempe, Ariz.