Darrent Alpine SWR-12D2 Type-R 12" Subwoofer with Dual 2-ohm Voice Coils

12" type-r Series car subwoofer peak: 3000 Watts RMS: 1000 Watts impedance: Dual 2 ohms sensitivity: 84.7 db Frequency response: 24 - 200 Hz 4-layer Dual voice coil high amplitude multi-roll santoprene surround pulp/Kevlar cone Progressive Conex Spider cast aluminum frame mounting depth: 6-3/8"