This package has everything you need, both a top notch 400 Watt subwoofer and an enclosure that fits perfectly. This new Discus subwoofer from MB Quart is an all new design based on the popular RLP Shallow Subwoofer line. The MB Quart Discus 400 Watt Max 10 inch shallow mount subwoofer features 2 inch voice coils, thermal formed poly cone, vented aluminum former, and butyl surround. With less than 3 inches mounting depth, this is perfect for trucks or similar applications. This Q Power Single 10 Inch Sealed Car Audio Subwoofer Box Enclosure features solid 0.625 inch MDF construction, charcoal carpet covering, terminal cup connectors, 0.9 cubic feet of air space, and a mounting depth of 4.75 inches. This enclosure is compatible with the included subwoofer. Note: Subwoofer must be wired and installed into enclosure.