If you're a real car audio fanatic, a sub enclosure with just a hole or two isn't good enough. You need your music to really be banging. You need the Q Power Quad Subwoofer Enclosure. This enclosure features 4 holes for a pair of 8-inch mid and a pair of 3-inch tweeters. The 5/8 inch MDF construction is covered in a durable black carpet that will blend in with your car's interior. The holes are 7 and 3.5 inches big (for the speakers and tweeters respectively) so they fit snugly. This enclosure also features a speakon terminal and speakon cable. This 2 Pack Q Power Quad Subwoofer Enclosure is sure to really get your music bumping in your car and get the sound you're looking for.