Cerwin-Vega SM65F4 6.5" 2-Way Marine Speakers

The Cerwin-Vega SM65F4 is a pair of 6.5-inch 2-way marine coaxial speakers designed for boats, motorcycles, and powersports applications. They provide a flush-mount audio upgrade where conventional interior speakers may not withstand moisture, sunlight, or outdoor exposure. The 4-ohm design suits systems using compatible marine or powersports amplifiers and source units.

Each speaker combines a full-range woofer with a 25mm (1-inch) titanium dome tweeter. This 2-way arrangement is designed to cover midrange detail and high-frequency reproduction from a single mounting location. The Radial Zip Ring cone design is intended to support expanded high-frequency reproduction.

The SM65F4 is rated for 125 watts RMS and 250 watts peak power handling per speaker. Its 92 dB sensitivity rating at 1W/1m helps it produce useful output with appropriately matched amplification. A 4mm Xmax specification and Max Xmax suspension design support controlled cone travel.

For outdoor use, the speaker uses a thermal-molded, UV-coated waterproof composite injection cone and a high-temperature injection-molded composite basket. Cerwin-Vega identifies the model as IP65 marine-grade compliant and 100% UV stable. These construction details are intended for installations exposed to water spray, dust, and sunlight.

Integrated digital RGB LED lighting adds illumination around the speaker for compatible marine and powersports builds. The speaker is a flush-mount model with a 5.63-inch mounting diameter and 2.56-inch mounting depth. It can be used as part of a full system with a compatible 4-ohm amplifier, source unit, wiring, and optional RGB lighting control equipment.

Key Features

• 6.5-Inch 2-Way Design: Combines a woofer and titanium dome tweeter in one flush-mount speaker.
• 25mm Titanium Dome Tweeter: Handles high-frequency detail in the coaxial speaker system.
• 125W RMS Power Handling: Supports amplifier matching for higher-output marine and powersports systems.
• IP65 Marine-Grade Compliance: Built for exposure to dust, water spray, and outdoor conditions.
• UV-Coated Composite Cone: Helps the cone withstand prolonged outdoor and marine use.
• Integrated Digital RGB Lighting: Adds configurable lighting capability to compatible installations.

Design & Installation

The SM65F4 uses a ferrite magnetic motor, treated-cloth surround, high-temperature injection-molded composite basket, and thermal-molded UV-coated waterproof composite injection cone. Its titanium diaphragm material and 1.75-inch voice coil are paired with an internal 2-way speaker design. A grille is listed as optional.

Confirm the available cutout and rear clearance before installation: the specified mounting diameter is 5.63 inches and mounting depth is 2.56 inches. Use compatible 4-ohm amplification and follow the vehicle, boat, or fairing manufacturer's mounting guidance. RGB lighting requires appropriate compatible control and wiring; Cerwin-Vega lists its RPMDLED multi-function digital RGB LED remote control as available.