Summary: Diameter: 8.8 Inch; Sensitivity: 90.5 dB; Impedance: 4 Ohm; Frequency Response: 38-20000 Hz; Peak Power Handling (Watts): 300 Watts; Color: White; RMS Power Handling: 125 Watts; Marine Tested: JL Audio's marine speakers are tested in ultraviolet chambers to simulate years of sun exposure, and salt fog chambers to simulate years of exposure to salt-water environments.; DMA (Dynamic Motor Analysis): DMA is JL Audio's proprietary method of improving dynamic motor behavior. The DMA-optimized long-excursion design enhances output, bass extension and power handling of the speaker.; Polymer Basket And Grille: The baskets and grilles are UV-resistant polymer. The baskets encapsulate the w ...