• Dimensions: 21" long x 16" diameter (including the turbo vent on one side of the tube)
• Woofer Opening: Designed for a 12" woofer
• Air Space: 1.37 cubic feet
• Port Design: Square port along the top of the tube

This subwoofer cylinder box from Nippon is specifically crafted to accommodate a 12" woofer, providing an air space of 1.37 cubic feet for optimal performance. The unique square port along the top of the tube enhances the design and functionality of the subwoofer box.