Soundstream RF-8W 180W Reference 8″ Sub -Dual 4 Ohm

Product Description • Dual 4-Ohm 2.5” Voice Coil• TPX Honeycomb Cone• Backed by one year manufacturer waranty• High-Roll Foam Surround• Concealing Gasket/Trim Ring• Spoked Stiffening Sub-Cone Specifications   Sensitivity: 83 dB RMS Power Range : 180 Watts Impedance: 4 Ohm Diameter: 8 Inch Shallow Mount: No Number of Voice Coils: Dual Suggested Sealed Box Volume: 0.60 Cubic ft. Suggested Ported Box Volume: .75 Cubic ft.