Driver MPS 250 S2 Ultra-shallow structure compatible with minimum-depth enclosures. 500W continuous power handling, 2Ω impedance. Air Intercooling Revolution (A.I.R.) prevents air-compression-related limitations. Die-cast aluminum frame. Unrivaled mechanical excursion, +20% over traditional designs. Six-layer copper voice coil (38mm/1.5 in.) ensures high thermal capacity. Enclosure Ultra-shallow sealed enclosure specifically optimized to deliver all the MPS 250 S2 subwoofer performance. 15 mm (0.59 in.) wood thickness for incomparable robustness. Panel-to-panel internal bracing with solid corners to minimize resonances Round corners to ease the placement Internal sound-absorbing material virtually increases the box’s volume and reduces acoustic resonances. 2S² (2 Sides/2 Sounds) design provides the ability to choose between Down-Firing mounting, through supplied feet with Hook-and-loop inserts, to increase the low-frequency extension, and Up-Firing install to obtain more punch and definition. SSP (Sub Smart Plug) features both Plug-&-Play terminal block and traditional push terminals providing bulletproof connection and quick release. Robust screw-less mesh grille included featuring adjustable logo position suitable for reverse install.