Mb Quart Quart 310 - Subwoofer The MB Quart Quart 310 is a high-quality, vintage hi-fi subwoofer crafted by the German audio specialist MB Quart in the the 1980s. It’s designed as a passive, sealed (closed-box) unit, with a large 310 mm (≈ 12.2") driver, aimed at deep, clean low-frequency reproduction with musical character rather than just raw volume To deliver this product properly, it is carefully packed in very strong boxes, thereby wrapped in bubble wrap with lots of padding. We mainly use plastic to fill up the package, if wished differently please contact us. The package is shipped insured to protect both the buyer and seller. For further packing wishes please message after purchase. Photos serve as additional description of product condition / condition of display & LEDs. Please review them carefully before purchase. Orders to islands, or special destinations have a higher shipping cost, for example; Canary Islands