5.25" RPM Stroker 2-Way Marine Coaxial Speakers - SM52
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Overview
5.25" 2-Way Marine Coaxial Speakers
Upgrade your boat or outdoor sound system with the Cerwin-Vega SM52 5.25" 2-Way Marine Coaxial Speakers, engineered to deliver powerful, high-quality audio in demanding marine and outdoor environments. Designed with durability and performance in mind, these marine-grade speakers provide exceptional sound clarity while standing up to harsh weather, water exposure, and UV conditions commonly found on boats, motorcycles, UTVs, and outdoor recreational vehicles.
The Cerwin-Vega SM52 marine speakers feature a 5.25-inch woofer paired with a 25mm titanium dome tweeter, creating a balanced 2-way coaxial speaker system capable of reproducing crisp highs, detailed midrange, and dynamic low frequencies. This combination ensures your music remains clear and powerful whether you're cruising across the lake, relaxing at the dock, or riding on the open road.
Built to handle marine conditions, the SM52 speakers are IP65 marine-grade compliant, offering excellent protection against water, dust, and harsh environmental elements. Their waterproof and salt-resistant construction ensures long-lasting reliability in marine environments, while 100% UV-stable materials protect the speakers from sun exposure and fading over time.
The speakers utilize an ultra-compact neodymium motor structure, providing strong magnetic performance while maintaining efficient power handling and compact design. The Max X-Max suspension system allows the woofer to move with greater excursion, delivering stronger bass output and improved overall sound performance.
To further enhance sound quality, the Radial Zip Ring (RZR) cone design improves high-frequency extension and detail, ensuring your music sounds crisp and dynamic. The molded UV-coated waterproof composite cone and high-temperature injection-molded composite basket provide durability and structural strength while maintaining excellent acoustic performance.
Adding visual appeal to your setup, the integrated RGB LED lighting allows you to customize your system’s appearance for nighttime cruising or outdoor gatherings.
Key Features:
• 5.25" 2-way marine coaxial speaker system
• 25mm titanium dome tweeter for crisp highs
• IP65 marine-grade waterproof and salt-resistant design
• UV-stable materials for long-term durability
• Ultra-small neodymium motor for efficient performance
• Integrated RGB LED lighting for custom marine aesthetics
The Cerwin-Vega SM52 marine speakers deliver powerful sound, rugged durability, and customizable lighting, making them the perfect upgrade for boats, motorcycles, UTVs, and outdoor audio systems.
Specifications
SPEAKER SIZE - 5.25”
SPEAKER TYPE - CO AXIAL
OHMS (PER COIL) - 4
NUMBER OF VOICE COILS - SINGLE
CONE MATERIAL - POLYPROPYLENE
DIAPHRAGM MATERIAL - TITANIUM
BASKET MATERIAL - CAST ALUMINIUM
MAGNET TYPE - NEODYMIUM
SURROUND MATERIAL - TREATED CLOTH
CROSSOVER INCLUDED - YES - INTERNAL
, WATER RESISTANCE - IPX5
FREQUENCY RESPONSE (HZ): 45HZ-20KHZ
""VOICE COIL DIAMETER - INCH (MM) - 1.5""""""
SENSITIVTY (1W/1M): 93DB
XMAX (MM): 0.16"" 4(MM)
POWER HANDLING RMS: 50W
POWER HANDLING MAX: 250W
MOUNTING DIAMETER : 4.6” (117MM)
GRILL: YES
Product Manuals

Built to Brave the Elements
Dominate the outdoors with the RPM Series. These IP65-rated, UV-stable speakers provide a seamless professional upgrade, delivering legendary high-output sound that cuts through wind and waves on every adventure.
Precision Audio, Radiant Design
Precision-tuned for maximum impact, the RPM Series features advanced titanium tweeters. Upgrade your system with the perfect fusion of legendary performance and stunning outdoor aesthetics.