The Cerwin Vega RPM104FA 10" Single 4Ω RPM Series Subwoofer is a high-quality, waterproof subwoofer designed for marine and outdoor applications. With its robust construction, including a stamped basket, nomic spider, and extended back plate, it provides durability and excellent performance in challenging environments. The subwoofer’s versatile design makes it suitable for both sealed and ported enclosures, while built-in RGB LED lighting adds a customizable aesthetic element. Key Features: Speaker Configuration: 10" 4Ω - 200W RMS/400W MAX Subwoofer: Provides deep and powerful bass with a single voice coil design. Durability and Construction: Waterproof Design: Engineered to withstand harsh marine environments, including exposure to water and salt. Stamped Basket: Ensures a sturdy and durable structure for the subwoofer. Nomic Spider: Enhances the subwoofer’s suspension and improves overall performance. Extended Back Plate: Provides better thermal management and reduces distortion. Sound Quality Enhancements: Great for Sealed or Ported Applications: Versatile design allows for use in various types of enclosures, enhancing flexibility in installation. Built-in RGB LED Lighting: Adds a customizable lighting element for visual appeal. Convenience and Warranty: Push Terminals: Simplify wiring and connection processes. 1-Year Manufacturer's Warranty: Provides peace of mind with coverage against manufacturing defects. Specifications Impedance: 4Ω Single Voice Coil Power: 200W RMS/400W MAX SPL(dB): 84.6 Re(Ω): 3.3 Qms: 5.141 Qes: 0.824 Qts: 0.710 Fs(Hz): 36.884 Vas(L): 30.47 Cms(mm/N): 0.162 Mms(g): 114.359 Sd(m²): 0.036 BL(T*M): 10.305 Xmax (mm) : 12.3 Included: White Grill with LED Mounting Diameter: 9.10” (231.0mm) Mouthing Depth: 4.625” (117.5mm) Total Diameter: 10.75” (273.0mm) Free Air Application - Mounted To Facia With No Enclosure Mounting Surface: 16"x16" Open Area: 4ft³-15ft³ Measurements