Type Sealed enclosure Subwoofer 8" (200mm) Dimensions (HxDxW) 12" x 4.9" x 19" (303.6 x 124.8 x 489mm) Weight 15lbs (7kg) Impedance 4Ω Max. power 250W Nom. power 150W 83dB Frequency response 45Hz - 150Hz Accessories Screws, brackets and adhesive strip