(4) Rockville MS525B 5.25" 200W 2-Way Waterproof Marine Boat Speakers - Black

Pair Rockville MS525B 5.25" 400 Watt Waterproof Marine Boat Speakers 2-Way White. Designed for marine, outdoor and automotive use, these fully marinized speakers are IP56 rated for waterproof and rustproof performance in both salt and fresh water. What's in the box: 2 Speakers; Installation Hardware: (8 Stainless Steel Screws + 8 Stainless Steel Speed Clips); Mounting Template; Owner's Manual; Warranty Card. Power Ratings: Peak Power: 400 Watts per pair / 200 Watts each. RMS Power: 200 Watts per pair / 100 Watts each. Driver & Motor Details: Injection Molded Polypropylene Cone with Injection Molded Polypropylene Dust Cap. 1 inch ASV voice coil (Aluminum voice coil with ASV winding). 1 inch Tweeter: PEI Diaphragm with NdFeB magnet. Cloth surrounds. High quality magnet: 6 Oz Y30 Ferrite magnet. Magnet weight in OZ: 6 OZ. Magnet details: ?70*?32*10. 3MM plate and 3 MM T-yoke. Performance Specs: Impedance: 4 Ohm. Frequency Response: 110Hz 20 Khz. Sensitivity: 87dB @1w/1m. SPL: 87dB 2dB (at 1M / 1W). Resonant Frequency (F0): 120Hz + or 20% at 1V. Physical Dimensions: Total Diameter: 5.79 in. Cutout Diameter for Mounting: 5.31 in. Total Height: 2.56 in. Mounting Depth: 1.85 in. Construction & Protection: Anti-UV molded ABS plastic basket & grill. Completely waterproof and rustproof at level IP56. Fully marinized against salt & fresh water conditions. Pre-installed mounting screws included. Shipping: Shipping weight: 2.42 Lbs. Shipping Dimensions: 6 x 6 x 5.7. Thiele/Small Parameters: Fs: 142 Hz. Re: 3.2 ohms. Qes: 2.08. Qts: 1.3. Qms: 3.467. Vas: 1.712L.