More about the product
The Hertz DBX30.3 Dieci 12-Inch Loaded Subwoofer Box is built to deliver strong, controlled bass in a compact sealed enclosure. Designed for those who want a noticeable upgrade in low-frequency performance without taking up too much space, this subwoofer box combines precision engineering with durable materials for reliable everyday use.
At the heart of the DBX30.3 is a 12-inch Dieci subwoofer housed in a sealed enclosure. This design ensures tight and accurate bass response, making it ideal for music styles that require clarity and precision rather than excessive boom. The enclosure is constructed from high-density MDF, which minimises unwanted vibrations and resonance, allowing the subwoofer to perform at its best.
The DBX30.3 is rated at 250 watts RMS with a peak power of 1000 watts, providing plenty of headroom for clean, distortion-free bass even at higher volumes. Its 4-ohm impedance makes it compatible with most aftermarket amplifiers. The frequency response is tuned to deliver deep low-end extension while maintaining balance with the rest of the audio system.
Compact dimensions make installation straightforward, even in smaller vehicles. The enclosure is finished in a durable black carpet with the Hertz logo for a professional look. A protective grille is included to safeguard the subwoofer cone from accidental damage, adding to its practicality.
This model is designed for sealed performance, so it will not produce the exaggerated bass often associated with ported enclosures. Instead, it focuses on accuracy and musicality, making it a great choice for listeners who value detail and control. For those seeking heavier bass output, pairing the DBX30.3 with a more powerful amplifier or adding a second unit can enhance overall impact.
Overall, the Hertz DBX30.3 Dieci 12-Inch Loaded Subwoofer Box offers a well-balanced solution for upgrading factory audio systems. It combines quality construction, efficient design, and strong performance in a compact package that suits everyday driving.
Technical details
- Brand
- Hertz
- Continuous Power Handling
- 250WRMS
- Frequency Response
- 28Hz ÷ 300Hz
- Impedance
- 4Ω
- Peak Power
- 1000W
- Size
- 12 inches
Look out for Bankstown Sound Recommendations
The Hertz DBX30.3 is ideal for those who want strong, controlled bass without sacrificing space. It suits everyday music listening and works well with moderate to high-power amplifiers. Compared to cheaper options, it offers better build quality and sound accuracy. It is not designed for extreme bass enthusiasts, as its sealed design prioritises precision over sheer output. Perfect for drivers who value musical detail and a compact footprint.
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.