The HEX 4 C-W expands the Hertz Marine HEX range with a compact 4-inch coaxial solution engineered to deliver premium marine sound quality where installation space is limited. Ideal for consoles, cabins, T-tops, and secondary listening areas, it provides the same acoustic signature and reliability that have made HEX a reference for marine audio enthusiasts. Designed to withstand the harshest marine environments, the HEX 4 C-W is Hertz Pure Marine Certified™, featuring IP65 water protection, UV resistance compliant with ASTM-D4329 standards, and salt fog resistance tested according to ASTM-B117. Every component has been developed to ensure long-lasting performance in the presence of moisture, salt, and prolonged sun exposure. The high-efficiency tweeter, optimized through advanced FEM simulation, delivers smooth and detailed high frequencies with wide off-axis dispersion, ensuring excellent sound clarity throughout the boat. The compact 4-inch woofer, equipped with a 25 mm (1”) voice coil and specifically tuned for infinite baffle applications, provides balanced mid-bass response while requiring minimal mounting depth. A sealed integrated crossover with resettable solid-state tweeter protection safeguards system reliability over time, while corrosion-resistant nickel-plated terminals ensure secure electrical connections even in demanding marine conditions. Finished with the elegant White Classic sound-transparent grille featuring a practical twist-and-lock mounting system, the HEX 4 C-W combines refined marine aesthetics, installation flexibility, and authentic Hertz performance in a compact package.
| Component | COAX |
| Size mm (in.) | 102 (4) |
| Power Handling - Continuous W | 30 |
| Power Handling - Peak W | 60 |
| Impedance Ohm | 4 |
| Depth mm (in.) | 52 (3.25) |
| Tweeter diaphragm mm (in.) | 20 (0.8) |
| Woofer Voice Coil Ø mm (in.) | 25 (1) |
| Tweeter Voice Coil Ø mm (in.) | 20.4 (0.8) |
| Frequency Response Hz | 100 ÷ 20k |
| Woofer Magnet size D x d x h mm (in.) | 75 x 32 x 12 (3.35 x 1.26 x 0.59) |
| Tweeter Magnet size D x h mm (in.) | 20 x 3 (2.95 x 1.26 x 0.47) |
| Weight of one speaker kg (lb.) | 0.7 (1.5) |
| Woofer Magnet | High density flux ferrite |
| Tweeter Magnet | Neodymium |
| Cone | Polypropylene with UV inhibitors |
| Dome | PEI |
| Xmech mm (in.) | ±4.7 (0.19) |
| D mm | 64.85 |
| Xmax mm | 3 |
| Re Ohm | 3.22 |
| Fs Hz | 123.40 |
| Le mH | 0.259 |
| Vas I | 1.467 |
| Mms g | 6.754 |
| Cms mm/N | 0.246 |
| BL T*m | 3.911 |
| Qts | 0.88 |
| Qes | 1.101 |
| Qms | 4.369 |
| Spl dB | 87 |
| A | 134.5 mm | 5.29 in. |
| B | 95 mm | 3.7 in. |
| C | 52.3 mm | 2.05 in. |
| D | 70.8 mm | 2.79 in. |
| E | 18.5 mm | 0.73 in. |
| U | 118 mm | 4.65 in. |
| V | 4.5 mm | 0.177 in. |
1. Hertz Pure Marine Certified™ product, engineered to withstand harsh marine environments with IP65 water protection, UV resistance compliant with ASTM-D4329, and salt fog resistance tested according to ASTM-B117 standards.
2. High-efficiency tweeter developed using FEM simulation, optimized for wide off-axis dispersion, ensuring clear and detailed sound even in typical in-boat listening positions.
3. White Classic sound-transparent grille, featuring a secure twist-and-lock mounting system, combining a clean, elegant marine look with rock-solid protection against impacts and vibrations.
4. Compact 4” woofer with a 25 mm (1”) voice coil, specifically tuned for infinite baffle marine installations, delivering balanced mid-bass performance in reduced mounting spaces.
5. Sealed integrated crossover with resettable solid-state tweeter protection, designed to ensure long-term reliability and consistent sound quality in marine conditions.
6. Nickel-plated corrosion-resistant terminals, ensuring secure electrical connections and long-lasting performance in humid and salt-rich environments.
The protection grade IP65 for speakers define all the Hertz Marine products as totally protected against water jets of different entities, making them highly performant in the marine environment.
According to the severe ASTM-D4329 standards for UV resistance, all the materials used for Hertz Marine products are designed to face long time exposition to UV radiations while cruising on the open sea.
To satisfy the standards required by ASTM-B117, Hertz Marine products are tested with massive salt fog spray to ensure a complete resistance to corrosion, typical of this atmospheric agent.
