Pyle PDIWS28 Dual 8- Inch In-Wall / In-Ceiling High-Power Subwoofer Speaker System, Dual Voice Coil, Flush Mount, White In-Wall / In-Ceiling System - Includes (2) 8'' High-Power Woofers DVC: Dual Voice Coils (2) 2'' High Temperature Voice Coils - 8 Ohm Impedance Power Handling: 300 Watt RMS, 600 Watt Peak - Frequency Response: 60Hz - 4kHz Mounts Flush on Walls or Ceilings - Perfect for Custom Installations & Applications Overall Dimensions (W x H x D): 20'' x 10.2'' x 4.6'' - (Cut-Out): 18.6'' x 8.8'' x 4.0''