MB Quart is a premium German-founded audio manufacturer established in 1962 in Obrigheim, Germany, originally producing professional studio microphones and headphones before expanding into high-end home and car audio systems. Known for elaborate designs and distinctive sound quality, the company pioneered OEM metal-dome tweeter technology and built a reputation for exceptional drive-unit engineering. Following ownership transitions from Rockford Fosgate (2000-2004) to current owner Maxxsonics USA Inc. (since 2005), MB Quart now operates from Libertyville, Illinois, near Chicago, under the leadership of President/CEO Alden Stiefel (recently transitioning to Board Chairman after 49 years in the industry). The company generates approximately $4 million revenue with 33 employees and focuses on mobile, marine, powersports, and RV audio solutions including amplifiers, speakers, and subwoofers. MB Quart maintains strategic OEM partnerships with major manufacturers like Polaris, Kawasaki, CFMOTO, and Bobcat, while continuing their 'Music. Defined.' brand promise of transforming audio into immersive soundscapes across automotive, marine, and recreational vehicle applications.
Founded: 1962
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