The MTX SledgeHammer unloaded enclosures are the best unloaded enclosures on the market today. Constructed using 5/8" MDF and Dado V-groove technology, these enclosures are designed to handle any sub and deliver the ultimate in performance. An internal rear magnet brace make these enclosures ideal for the largest subwoofers including the MTX T9500 series. The dual front port and gloss black baffle allow looks to be as solid as the performance.