More about the product
The Hertz HMX 8 TC is a premium marine coaxial speaker designed for outstanding audio performance in harsh outdoor environments. Built with durability in mind, this model features a robust construction that resists water, salt, and UV damage, making it ideal for boats and other marine applications. The speaker uses high-quality materials to ensure long-lasting reliability even under extreme conditions.
The HMX 8 TC includes an integrated tweeter and woofer in a coaxial configuration, delivering a balanced sound with clear highs and deep lows. The tweeter is mounted on an acoustic lens that optimises dispersion, ensuring consistent audio quality across a wide listening area. This design helps maintain clarity even in open spaces where sound can easily dissipate.
With a diameter of 8 inches, the woofer provides strong bass response without distortion. The polypropylene cone is reinforced for rigidity, while the rubber surround enhances durability and flexibility. The speaker also features a sealed motor structure to prevent corrosion and maintain performance over time.
Installation is straightforward thanks to the included grille and mounting hardware. The grille is designed to resist UV rays and maintain its appearance, while the speaker’s frame is engineered for secure fitting in marine environments. The HMX 8 TC is rated for high power handling, allowing it to pair well with powerful amplifiers for those seeking louder and more dynamic sound.
This model is part of Hertz’s marine series, which focuses on delivering high-quality audio without compromising on weather resistance. While the HMX 8 TC excels in durability and sound quality, it does not include wireless connectivity or smart features, as it is designed purely for wired audio systems. This makes it a reliable choice for those who value simplicity and performance over extra technology.
Technical details
- Brand
- Hertz
- Cone
- Polypropylene with UV inhibitors
- Continuous Power Handling
- 100WRMS
- Dome
- PEI
- Frequency Response
- 45Hz ÷ 25kHz
- Impedance
- 4Ω
- Mounting Depth
- 91mm
- Peak Power
- 200W
- Size
- 8.8 inches
- Tweeter Magnet
- Neodymium
- Woofer Magnet
- High density flux ferrite
Look out for Bankstown Sound Recommendations
The Hertz HMX 8 TC is ideal for marine enthusiasts who want high-quality sound without worrying about weather damage. It suits boat owners looking for a durable speaker that can handle salt, water, and UV exposure while delivering clear audio. Compared to cheaper marine speakers, it offers superior build quality and sound performance. However, those seeking wireless features or advanced connectivity may prefer other options, as this model focuses on wired reliability and acoustic excellence.
Why Choose Bankstown Sound for Your Car Audio & Tech Upgrades
At our Bankstown Sound store and workshop in Sydney, our team ensures every car and auto audio installation and upgrade starts with an understanding of how you use your car. Our team works with you to understand your driving habits, the features you rely on, and the problems you’re trying to solve.
Most factory setups are built to broad standards and often lack the clarity or seamless connectivity required for how people actually drive. That’s why we focus on modernising your dashboard and audio performance based on how you use your vehicle.

