Fits two 8 inch subwoofers   MDF construction   Fits behind the seat   Air Space = .45 cu ft per sub   Mounting Depth = 5.00" (5 5/8" available)   Mounting Depth based on 6" diameter magnet   Speaker terminals included   Hole cutout for 8" Sub = 7"   Subwoofers and/or amplifiers not included   Charcoal Grey Pictured Subwoofers & Amps Not Included Hole Cutouts adjustable per request Subwoofer Mounting depth based on the most common size subwoofers. Some Subwoofers with oversized framing/magnets may not fit without modification. If you're using a subwoofer that is close to the max specs please contact us for fitment confirmation.