founded in the 1960’s in obrigheim germany, mb quart has established itself as a key manufacturer of high quality audio components for home, professional audio and mobile audio. today mb quart offers seven distinct product lines covering home audio, mobile, and marine applications. the technology begins at the q-series; the line considered to be the world’s finest automotive speakers, and continues through premium, reference, onyx and nautic and our world-class marine line. with mb quart you are certain to find a sound system that meets your particular needs. mb quart products is music. defined.