Description
Hertz DBX 25.3 – 10″ Ported Car Subwoofer Enclosure (150W RMS, 600W Peak, 4Ω)
The Hertz DBX 25.3 – 10″ Ported Car Subwoofer Enclosure (150W RMS, 600W Peak, 4Ω) is a compact loaded subwoofer enclosure engineered to deliver powerful, dynamic, and controlled bass while taking up minimal space in your vehicle. Equipped with a 10-inch Hertz DS subwoofer, the DBX 25.3 is an ideal upgrade for factory and aftermarket car audio systems, providing impressive low-frequency performance with quick and easy installation.
Built with a rigid MDF enclosure and an optimized bass reflex design, the DBX 25.3 offers the signature Hertz sound quality, delivering deep bass and excellent musicality for everyday listening.
Powerful Bass in a Compact Enclosure
The Hertz DBX 25.3 is specifically designed to improve the low-frequency performance of your car audio system without requiring a custom enclosure.
Its 10-inch (250 mm) DS subwoofer produces tight, punchy bass with excellent control, making it suitable for a wide variety of music styles, from electronic and hip-hop to rock and pop.
Optimized Bass Reflex Design
The DBX 25.3 features a professionally tuned ported (bass reflex) enclosure that increases efficiency and extends low-frequency response compared to sealed designs.
Benefits include:
- Deeper bass reproduction
- Higher sound pressure levels
- Improved efficiency
- Dynamic and punchy low frequencies
- Enhanced overall listening experience
The vented enclosure allows the subwoofer to move air more efficiently, creating stronger bass with less amplifier power.
Rigid MDF Construction
The enclosure is built from thick MDF panels that provide exceptional strength and acoustic stability.
Advantages include:
- Reduced enclosure resonance
- Cleaner bass reproduction
- Improved sound accuracy
- Durable long-lasting construction
- Excellent vibration control
This solid construction allows the subwoofer to perform efficiently without unwanted cabinet coloration.
Angled Rear Panel
The rear of the enclosure features an angled design that simplifies installation while also improving internal acoustic performance.
Key benefits include:
- Easier placement inside the trunk
- Reduced internal sound reflections
- Better bass efficiency
- Optimized enclosure performance
High Efficiency for Everyday Systems
With 89 dB sensitivity, the DBX 25.3 delivers impressive bass output even when powered by compact amplifiers.
Its efficient design makes it an excellent choice for:
- Factory audio upgrades
- Compact aftermarket systems
- Daily driving
- Vehicles with limited luggage space
Key Features
- 10″ (250 mm) Loaded Car Subwoofer Enclosure
- 150 Watts RMS Power
- 600 Watts Peak Power
- 4 Ohm Impedance
- Built-in Hertz DS Subwoofer
- Bass Reflex (Ported) Enclosure
- Thick MDF Cabinet Construction
- Rear Angled Panel Design
- 89 dB High Sensitivity
- Deep, Punchy and Controlled Bass
- Quick and Easy Installation
Technical Specifications
| Specification | Value |
|---|---|
| Speaker Size | 10″ (250 mm) |
| RMS Power | 150 W |
| Peak Power | 600 W |
| Impedance | 4 Ω |
| Frequency Response | 32–400 Hz |
| Sensitivity | 89 dB |
| Voice Coil Diameter | 38 mm |
| Xmax | 9 mm |
| X-mech | 16 mm |
| Resonance Frequency (Fs) | 36 Hz |
| Equivalent Volume (Vas) | 34 L |
| Total Q Factor (Qts) | 0.92 |
| Enclosure Type | Ported (Bass Reflex) |
Package Includes
- 1 × Hertz DBX 25.3 Loaded Subwoofer Enclosure
Why Choose Hertz DBX 25.3?
The Hertz DBX 25.3 is an excellent choice for anyone looking to add deep, musical bass without sacrificing valuable trunk space. Its 10-inch DS subwoofer, rigid MDF enclosure, and optimized bass reflex design provide outstanding performance, high efficiency, and easy installation.
Whether you’re upgrading a factory sound system or building a compact aftermarket setup, the DBX 25.3 delivers the powerful, controlled bass and premium audio quality that Hertz is known for.

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