Rockford Fosgate RM1652B 6.5" Marine Coaxial Speakers

The Rockford Fosgate RM1652B is a pair of 6.5-inch, 2-way marine coaxial speakers finished in black. It is designed for boats, powersports vehicles, and other exposed installations where ordinary interior speakers may not be suitable. The integrated grille and coaxial tweeter create a compact, all-in-one full-range speaker solution.

These speakers are intended for listeners upgrading factory marine audio or building a new system with a compatible 4-ohm source unit or amplifier. Each speaker handles 75 watts RMS and 150 watts maximum, providing a practical match for many marine-rated amplifiers and powered head units. Their 49 Hz to 20 kHz frequency response supports broad full-range playback.

The RM1652B uses a 1-inch LCP volcano dome tweeter integrated into the grille to reproduce upper-frequency detail without requiring separate tweeter mounting locations. A high-pass crossover is built into the speaker design with a 6 dB-per-octave slope. The 2-way coaxial layout keeps installation straightforward while combining woofer and tweeter output at each mounting position.

Marine-focused materials help the speaker withstand outdoor exposure. Its mineral-filled polypropylene cone includes UV inhibitors, while the Santoprene surround is specified as UV- and salt-fog-resistant. An aramid-fiber spider is used for moisture, tear, and fatigue resistance.

The RM1652B fits standard 6.5-inch speaker locations requiring a 5.4-inch mounting cutout and 2.5 inches of mounting depth. It can be used as a direct pair for a stereo setup or combined with additional speakers, a marine amplifier, and a subwoofer for a more complete system. Black grilles and trim rings provide a coordinated appearance for dark interiors, consoles, and panels.

Key Features

• 2-Way Coaxial Design: Combines woofer and tweeter output in each speaker location.
• 75W RMS Handling: Supports use with compatible marine amplification.
• 1-Inch LCP Dome Tweeter: Provides dedicated high-frequency reproduction through the integrated grille.
• UV-Resistant Cone: Mineral-filled polypropylene cone includes UV inhibitors for exposed installations.
• Santoprene Surround: Resists UV exposure and salt-fog conditions.
• Marine Installation Hardware: Includes stainless-steel mounting screws for speaker installation.

Design & Installation

The RM1652B uses black, UV-stable ASA injection-molded plastic components, a mineral-filled polypropylene cone, Santoprene surround, and an aramid-fiber spider. Its grille-integrated tweeter and removable trim ring/grille help maintain a clean finished appearance. Corrosion-resistant speaker terminals and fully insulated silicone lead wire support use in marine and powersports environments.

Verify that the mounting surface accommodates the 5.4-inch cutout and 2.5-inch mounting depth before installation. Route speaker wire before securing the speakers, observe the marked positive terminal for correct polarity, and use the included stainless-steel hardware. Pair the speakers with a 4-ohm-capable source or amplifier and avoid exceeding their 75-watt RMS rating per speaker.