HERTZ MP 250 D2.3 PRO

The HERTZ MP 250 D2.3 PRO was developed for high-end car audio systems that require high volume levels, precise low-frequency response, and a compact enclosure. Thanks to its sophisticated design featuring a mineral-fiber paper cone, a generously sized 65-mm voice coil, and an exceptionally long excursion, this 25-cm subwoofer delivers controlled bass reproduction down to the lowest frequency ranges. The dual 2-ohm voice coil allows for flexible wiring configurations to accommodate a wide variety of amplifier setups.

The rigid V-Cone® diaphragm ensures smooth cone movement and minimizes distortion even at high excursion levels. Boundary Free Surround technology increases the effective diaphragm area and boosts sound pressure without increasing the mounting diameter. The low-resonance die-cast aluminum basket and the optimized ventilation of the voice coil ensure high power handling and reliable cooling even during long listening sessions.

Even in enclosed enclosures as small as approximately 17 liters, the MP 250 D2.3 PRO delivers extremely precise and dynamic sound, making it suitable for both sound-oriented systems and high-performance everyday setups.

Technical Specifications

• 25 cm (10-inch) High-Performance Subwoofer
• Power Handling: 600 watts RMS
• Maximum power rating: 1,200 watts
• Dual voice coil: 2 × 2 ohms
• 65 mm (2.56") 4-layer CCAW voice coil
• Compressed paper membrane reinforced with mineral powder
• V-Cone® diaphragm geometry for high stiffness
• Boundary Free Surround (BFS) for a larger effective diaphragm area
• High-density ferrite magnet
• Linear stroke (Xmax): 17 mm
• Maximum mechanical stroke (Xmech): ±27 mm
• Resonance frequency (Fs): 30 Hz
• Sensitivity: 83.5 dB (1 W/1 m)
• DC resistance (Re): 0.85 ohms
• Overall Quality (Qts): 0.54
• Equivalent volume (Vas): 25 liters
• Installation diameter: 236 mm
• Installation depth: 160 mm
• Outer diameter: 268 mm
• Weight: approx. 8.2 kg
• Recommended enclosed case with a capacity of at least 17 liters