Focal Sub 10 Performance Slim Compact Shallow 10 Inch Car Subwoofer 230w RMSFocal SUB 10 COMPACT SUBWOOFER SUBWOOFER LINE Designed and developed in France, the Sub 10 Slim benefits from Focals sound savoir faire. With its 10 (25 cm) polypropylene cone, this subwoofer provides an excellent bass boost for any on board audio system. It has a single voice coil architecture for simplicity and efficacy. With a very shallow depth, this product is easily installed into restricted spaces such as the sides of a car boot. Shallow depth;