Hertz HMX 7.7-Inch Premium Sport LED Marine Coaxial Speakers

Engineered for open-water adventures, the Hertz HMX 7.7-Inch Premium Sport LED Marine Coaxial Speakers deliver high‑fidelity sound without compromising durability. Available in black and white, these speakers feature a paintable sport grille that lets you tailor the look to your performance boat—from cockpit to deck—while keeping the rugged, salt‑spray ready performance you demand. Built to endure the harsh marine environment, the HMX series blends precision acoustics with long‑lasting materials you can trust season after season.

What makes the HMX 7.7-Inch stand out

• Pure Marine Certified durability with IP65 protection, ASTM‑D4329 UV resistance, and ASTM‑B117 salt fog operability, ensuring reliable performance in sun, spray, and humidity.
• Paintable sport grille for seamless integration with your boat’s aesthetics while protecting sensitive high‑tone pathways for crisp, accurate highs.
• 1.4-inch neodymium tweeter with a PEI dome and an optimized acoustic lens designed for excellent off‑axis dispersion and high SPL without harsh fatigue.
• Long‑throw 25 mm voice coil woofer tuned for infinite‑baffle applications, delivering solid midbass and responsive bass extension on deck or below, even in open‑water conditions.
• Sealed built‑in crossover with a resettable solid‑state tweeter protection circuit to guard against moisture and thermal stress.
• Gold‑plated terminals for corrosion resistance in salt spray environments and stable, reliable connections over time.
• Robust construction with ASA plastic grilles, polypropylene cones with UV inhibitors, and a co‑molded Santoprene surround for endurance in high‑humidity marine settings.
• Aramid fiber spider and silicone‑insulated lead wires contribute to consistent sound reproduction and long‑term reliability in harsh marine climates.

Technical snapshot

• Component: HI-END LED COAX
• Size: 196 mm (7.7")
• Depth: 113 mm (4.4")
• Power handling: 100 W RMS (continuous) / 200 W peak
• Impedance: 4 Ω
• Tweeter: 36 mm (1.4") PEI dome with 20 mm voice coil
• Woofer: 32 mm (1.26") voice coil with a 90 x 40 x 20 mm ferrite magnet
• Frequency response: 45 Hz – 25 kHz
• Magnetry: Woofer—high‑density ferrite; Tweeter—neodymium
• Cone/Dome: Polypropylene with UV inhibitors; PEI dome
• Xmax (Xmech): ±8.5 mm
• Weight: 1.66 kg (3.66 lb) per speaker

Why this matters on the water

The HMX 7.7-Inch coaxial design balances loud, clean highs and confident bass with a compact footprint, making it ideal for boats where space is at a premium. The neo‑magnet tweeter and optimized lens deliver bright, detailed treble even at higher volume levels, so wake‑crashing bass and clear vocals cut through engine noise and wind. The sealed crossover and silicone‑insulated wiring minimize moisture intrusion, preserving performance in salty air and humidity. And because the grille is paintable, you can preserve a cohesive boat aesthetic without sacrificing acoustic performance.

Who should consider the Hertz HMX 7.7-Inch

Boaters seeking premium sound without bulky enclosures, especially those with performance boats, center consoles, or cockpit installations where weather resistance and aesthetic cohesion matter. If you want LED accents that glow with the music and a 7.7‑inch coaxial capable of delivering crisp highs and solid bass, this model checks the boxes. It’s a practical upgrade for those who refuse to compromise on sound quality while venturing into hot sun, salt spray, and long seasons on the water.

Brand assurance and installation mindset

From Action Outdoors Limited, Hertz HMX is built on a tradition of rugged outdoor electronics designed for real marine use. The combination of UV‑protected materials, corrosion‑resistant terminals, and a thoughtful, paintable grille ensures a durable, good‑sounding solution that keeps pace with your boat’s lifestyle—from dawn runs to moonlit cruises.

Practical tips for best results

Pair these 7.7-Inch coaxials with a marine amplifier that can reliably deliver the 100 W RMS rating per channel and take advantage of the 4 Ω load for strong, efficient playback. Mount in location with adequate ventilation and consider a sealed or weather‑sealed installation to maximize bass response and longevity. Use the gold‑plated terminals for clean, lasting connections, and keep the grille area free from debris to maintain optimal high‑frequency performance.