Hertz Dieci DBX 30.3 - 12-inch Enclosed Subwoofer with 250 W RMS and 4 Ohm
The Hertz Dieci DBX 30.3 is a 12-inch enclosed subwoofer that delivers powerful, controlled bass with minimal installation effort. The solid MDF enclosure and angled back wall reduce resonances and facilitate placement in the trunk. With 250 W RMS and up to 1000 W peak power, the box harmonizes perfectly with compact mono or 2-channel power amplifiers at 4 ohms. The widely usable frequency range of 28 to 300 Hz cleanly covers low frequencies.
Technical Highlights
- Design: 12-inch (30 cm) enclosed subwoofer
- Power: 250 W RMS, 1000 W Peak
- Impedance: 4 Ohm
- Voice Coil: 38 mm
- Frequency Response: 28–300 Hz
- Mechanical Excursion (Xmech): 9 mm
- Enclosure: Thick-walled MDF for high rigidity
- Angled back wall to reduce back wall reflections and for easier placement
- No integrated filter component (sub-box without crossover)
Installation & Compatibility
The box is designed for quick installation and efficient use of space. Its shape fits neatly against the rear seat, saving storage space in everyday use. For operation, an amplifier with approximately 250–400 W RMS at 4 ohms is recommended. Start with a low-pass crossover at approx. 70–80 Hz, adjust phase and level to match your front system, and secure the box in the trunk to prevent slipping.
Dimensions
- A: 484 mm
- B: 227 mm
- C: 343 mm
