DB Drive SPF10D4 : 10 in Dual 4-Ohm Shallow Subwoofer Powered Subwoofers 7" CMOS image sensor with

7" CMOS image sensor with an effective resolution of 640 x 480 (307

Like all M6 models

The trapezoidal shape of the enclosure is designed to create greater rigidity and reduce internal standing waves while minimizing any space lost by matching the typical angle of the car's rear seat

Monocoque construction

35 Port diameter (inches) N/A Port length (inches) N/A The Alpine S2-W10D4 replaces these items: Alpine S-W10D4

DB Drive SPF10D4 : 10 in Dual 4-Ohm Shallow Subwoofer Powered Subwoofers 7" CMOS image sensor withFeatures 2. 5" High Temperature Voice coil Reinforced paper cone Dual poly cotton dampeners Stamped Cast basket Rubber gasket trim ring Large gauge compression terminals Protective magnet cover Specifications Structure 12" (30. 48cm) Woofer Dynamic Power Handling 1200 Watts Nominal Power Handling 600 Watts Impedance Dual 4? Voice Coil Parameters Resonant Frequency (fs) 34. 798Hz D. C. Voice Coil Resistance (Re) 3. 4 x 2? Mechanical Quality Factor