HERTZ HMX6-5-LD-TW 6.5" RGB Marine Coaxial Speakers

The HERTZ HMX6-5-LD-TW is a 6.5-inch, 4-ohm marine coaxial speaker set designed for installations where exposure to water spray, UV light, dust, and salt air is a concern. Its white grille and tone-on-tone front mesh suit marine audio systems with a clean all-white appearance. Integrated RGB LED lighting adds illumination without requiring a separate light assembly at the speaker location.

With 75 watts continuous and 150 watts peak power handling, these speakers are suited to marine stereo upgrades that need more output capability than basic factory speakers. The 50 Hz to 25 kHz frequency response covers midbass through high frequencies in a single coaxial design. A 89 dB sensitivity specification supports useful output from appropriately matched 4-ohm amplification.

The coaxial layout places a 1.4-inch PEI dome tweeter at the center of the polypropylene woofer. Its acoustic lens and faceplate are designed to support off-axis high-frequency dispersion, which is useful when speakers are mounted away from the primary listening position. A sealed built-in crossover directs frequencies between the woofer and tweeter and includes resettable solid-state tweeter protection.

The woofer uses a UV-inhibitor polypropylene cone with a co-molded Santoprene surround and a 1-inch voice coil. An aramid-fiber spider and silicone-insulated lead wires support long-term operation in demanding outdoor environments. The high-density ferrite woofer magnet and FEM-optimized high-excursion motor are designed for infinite-baffle applications common in marine speaker mounting locations.

The HMX6-5-LD-TW is part of Hertz's HMX LD speaker family and can be paired with the optional HM RGB 1 BK controller for RGB lighting control. It is intended for systems using standard 4-ohm speaker channels, including compatible marine source units and external amplifiers. Its IP65 rating and stated UV and salt-fog testing support use in marine and powersports-oriented installations when installed correctly.

Key Features

• Integrated RGB LEDs: Built-in multicolor lighting is positioned below the tweeter behind a transparent polypropylene diffuser.
• Marine Environmental Protection: IP65 protection, UV-resistance testing, and salt-fog testing support exposed installations.
• 6.5-Inch Coaxial Layout: Combines a woofer and centrally mounted tweeter in one speaker location.
• 75W Continuous Handling: Supports appropriately matched amplification for higher-output marine audio systems.
• Acoustic Lens Tweeter: The PEI dome tweeter and lens are engineered for off-axis high-frequency dispersion.
• Built-In Protection: A sealed crossover includes a resettable solid-state circuit for tweeter protection.

Design & Installation

The HMX6-5-LD-TW uses a UV-inhibitor polypropylene cone, co-molded Santoprene surround, aramid-fiber spider, and a marine-grade polymer basket and grille. Its tweeter uses a neodymium magnet, PEI dome, and sound-transparent stainless-steel mesh grille. Gold-plated corrosion-resistant terminals are provided for speaker connections.

Confirm the available mounting area against the published physical dimensions before cutting a panel: the outer diameter is 172.2 mm, dimension B is 128 mm, mounting depth is 69 mm, and overall depth is 95.6 mm. Use a 4-ohm-compatible source unit or amplifier and account for the 75-watt continuous rating per speaker when system matching. The integrated RGB lighting is designed for use with the Hertz HM RGB 1 BK controller accessory.