Hertz HEX 4 C-W 4" Marine Coaxial Speaker IP65 White – Each

Compact Marine Coaxial Performance, Built for Harsh Environments

Product Overview

The Hertz HEX 4 C-W is a 4-inch coaxial speaker from the Hertz Marine HEX range, purpose-engineered for marine installations where space is limited but sound quality and environmental protection cannot be compromised. Ideal for consoles, cabins, T-tops, and secondary listening areas, it brings the acoustic signature of the HEX range to smaller format applications.

The HEX 4 C-W carries Hertz Pure Marine Certified™ status, backed by IP65 water protection, UV resistance tested to ASTM-D4329, and salt fog resistance verified to ASTM-B117. The 20mm PEI dome tweeter was developed using finite element method (FEM) simulation for wide off-axis dispersion, ensuring clear high-frequency reproduction across typical in-boat listening positions. The 4-inch polypropylene woofer features a 25mm voice coil tuned specifically for infinite baffle applications, delivering balanced mid-bass in minimal mounting depth. A sealed integrated crossover with resettable solid-state tweeter protection and nickel-plated corrosion-resistant terminals complete the package. The White Classic sound-transparent grille uses a twist-and-lock system for secure, vibration-resistant mounting and a clean marine finish.

Features & Benefits

• Hertz Pure Marine Certified™ — IP65 water protection, ASTM-D4329 UV resistance, and ASTM-B117 salt fog resistance
• FEM-optimised 20mm PEI dome tweeter — wide off-axis dispersion for clear high-frequency coverage across the boat
• 4" polypropylene woofer with UV inhibitors — tuned for infinite baffle marine installations, minimal mounting depth (52mm)
• 25mm (1") voice coil — balanced mid-bass response in a compact package
• Neodymium tweeter magnet / high density flux ferrite woofer magnet — efficient, compact motor system
• Sealed integrated crossover — resettable solid-state tweeter protection for long-term reliability
• Nickel-plated corrosion-resistant terminals — secure electrical connections in humid and salt-rich environments
• White Classic twist-and-lock grille — sound-transparent, impact-resistant, vibration-secure mounting
• ±4.7mm mechanical excursion (Xmech) — controlled cone travel for marine conditions

Technical Specs

Physical Dimensions:

Compatible With

Suitable for marine audio installations including:

• Console and helm positions
• Cabin and below-deck listening areas
• T-top and hardtop mounting positions
• Secondary listening zones requiring compact speaker format
• Any marine installation requiring a 95mm cutout at minimum 52mm depth

Weight

0.7kg per speaker

Frequently Asked Questions

What does Hertz Pure Marine Certified™ mean?

It indicates the speaker has been tested and certified to meet specific marine environmental standards: IP65 water protection (dust-tight and water jet resistant), UV resistance per ASTM-D4329, and salt fog resistance per ASTM-B117. These tests confirm the speaker can withstand prolonged exposure to moisture, sunlight, and salt — the key hazards in a marine environment.

What is the mounting cutout size required?

The HEX 4 C-W requires a 95mm (3.74") mounting cutout with a minimum mounting depth of 52.3mm (2.05"). Verify both dimensions against your installation location before purchasing.

What amplifier power is recommended for this speaker?

The speaker is rated at 30W continuous (RMS) and 60W peak at 4 ohm impedance. An amplifier delivering 20–60W per channel into 4 ohms is appropriate. Avoid running the speaker consistently at or beyond its peak rating.

Does the grille come included?

Yes. The White Classic sound-transparent grille with twist-and-lock mounting is included with the speaker.

Is this speaker sold as a single unit or a pair?

Confirm with supplier whether the HEX 4 C-W is sold individually or as a pair — the weight specification references "one speaker" suggesting individual sale, but verify before listing quantity.