(1)Dual 10"/12"Ported Bass subwoofer Box (2)10" Woofer 40 OZ Magnet (3)2"Voice Coil (4)PP Cone With Rubber Surround

CB250-3TZ

Dual 10" Ported Bass subwoofer Box10" Woofer 40 OZ Magnet2"Voice Coil , PP Cone With Rubber Surround Max Power: 500WSensitivity: 90Db Frequency Response:33~600HzIncluding: BAV 250 Amplifier & Wiring Kit

CB300-3TZ

Dual 12" Ported Bass subwoofer Box 12" Woofer, 40 OZ Magnet2"Voice Coil, PP Cone With Rubber SurroundMax Power: 600WSensitivity: 90Db Frequency Response:30~600HzIncluding: BAV 250 Amplifier & Wiring Kit

Dual 10"/12"Ported Bass subwoofer Box