12'' In-Wall High Power Subwoofer: "12'' In-Wall High Power Subwoofer 2'' High Temperature Dual Voice Coil Power Handling: 200W RMS, 400W Peak Frequency Response: 30Hz - 3K Hz 8 Ohm Impedance Overall: 14.6''(W) x 14.6''(H) x 4.2'' (D) Cut out: 13.2''(W) x 13.2''(H) x 3.8''(D)