Hertz HMX Marine Coax
Best marine speakers for boaters wanting high-fidelity sound and customizable lighting.
These speakers bring high-fidelity sound to the open water without sacrificing durability against salt and sun. While the integrated RGB lighting adds a flashy aesthetic, the real win is the acoustic lens tweeter that keeps your music crisp even when you are moving at speed.
$429.99
at
Audio Design (ShopAudioDesign)
Who it's for
- Audiophiles seeking clear, powerful sound in open-air marine settings
- Boat owners needing reliable gear for harsh saltwater environments
- Boaters wanting to customize their vessel's nighttime aesthetic
Who should skip it
- Owners of smaller vessels with limited mounting depth availability
- Budget-conscious buyers looking for entry-level marine audio solutions
- Installers wanting a simple, plug-and-play setup without complex wiring
Performance breakdown
Marine Durability
UV-resistant materials and corrosion-proof hardware thrive in harsh saltwater environments.
Bass Response
Infinite baffle optimization delivers punchy, resonant low-end in open-air settings.
Sound Dispersion
Acoustic lens tweeter ensures consistent audio quality across the entire deck.
Visual Customization
Integrated RGB lighting offers vibrant, versatile ambiance for evening boat outings.
Power Efficiency
High sensitivity rating allows for impressive volume without needing massive amplification.
Build Integrity
Co-molded Santoprene surrounds provide long-term protection against moisture and debris.
Key Specs
Power Handling (Peak)
150 W
Power Handling (RMS)
75 W
Impedance
4 Ω
Frequency Response
50 – 25,000 Hz
Sensitivity
89 dB SPL (1W/1m)
Woofer Size
6.5 inches (165 mm)
Tweeter Size
1.4 inches (36 mm)
Grille Material
Stainless Steel
Cone Material
Polypropylene
Connectivity Type
Wired
Know before you buy
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