10-Inch Subwoofer

The Hertz DS 25.3 is a 10-inch (250 mm) subwoofer from the Dieci series, engineered for car audio systems. This subwoofer boasts a nominal impedance of 4 ohms and a power handling capability of 150 watts RMS, with a program power rating of 600 watts. Its frequency response ranges from 32 Hz to 400 Hz, and it features a resonance frequency (free air) of 36 Hz. The Thiele & Small parameters include a Q factor of 0.92 (Qts), indicating a well-balanced driver suitable for various enclosure types. Detailed specifications highlight a maximum linear excursion (one way) of 9 mm (xmax) and a maximum excursion before damage of 16 mm (xlim). The voice coil diameter is 38 mm, and the magnet is ferrite with a diameter of 100 mm. The diaphragm's effective area (SD) is 365 cm², and its moving mass (MMS) is 106 g. The overall dimensions include a baffle cutout diameter of 234 mm and a mounting depth of 104 mm, with a net weight of 3.0 kg.