Martin Audio SX210 Slimline, Direct Radiating SubwooferThe SX210 is a slimline dual driver subwoofer designed for situations that call for a visually unobtrusive enclosure. It can be used singly, stacked or flown via integral M10 inserts and its ultra compact size makes it ideal for applications where space is limited. It features dual 10" (250mm) 2" (50mm) voice coil drivers and generously sized low frequency ports for reduced air noise. Features: Slimline direct radiator subwoofer 2 x 10" (250mm)