Alpine SWR-10D4

10" Dual 4-Ohm Type-R Series Car Subwoofer
Power Handling:
Peak: 3000 watts
RMS: 300-1000 watts
Recommend power: 400 - 750 watts RMS
Impedance: Dual 4 ohms
Kevlar treated pulp cone
Durable HAMR Santoprene™ surround
Progressive Conex spider
Compound Radius Curve pole geometry
Oversized 2.6", High-Temperature, 4-Layer Dual Voice Coil
10" Protective 2-Piece Subwoofer Grille Available, sold separately:
Alpine KTE-10G
Frequency response: 26-300 Hz
Resonance Frequency (Fs): 31Hz
Top-mount depth: 5-7/8"
Cutout Diameter: 9-1/16"
Sensitivity: 82dB