Features: Rockville RVW1800W41800 Watt 18" Mid-Bass Driver Car Audio Speaker Mid-Range. Power Rating : Peak Power : 1800 Watts. Power RMS : 900 Watts Kevlar Reinforced Ultra Stiff Paper Composite Cone. Pulp Composite Dust Cap. Expanded and Rolled Steel Basket. Treated Accordion, Asymmetrical W Cloth Surround Ultra Saturated, High BL Magnetic Motor Gap. 3 High Temperature 4-Layer CCAW High SPL Voice Coil. Linear Progressive Conex Dual Spider System. Nickel Plated Banana Plug Terminals. Impedance : 4 Ohms 107 oz. Magnet Motor Structure. Mounting Depth: 7.36" inches. Frequency Response : 20 Hz to 500 Hz. Sensitivity : 105dB @ 1w/1m. REVC: 3.2 Ohm. FO: 31.852 Hz. SD: 128.825m M. BL: 15: 936 TM QMS: 4.641. QES: 0.390. QTS: 0.360. NO: 3.042%. SPLO: 105 dB. VAS: 380.079 m M. CMS: 161.281 uM/N. MMS: 154.805 g. MMD: 128.218Kg
