12" subwoofer
Features:
Die-cast aluminum basket
Ferrite magnet(50 OZ)
Cloth edge and non-pressed paper+glass fiber cone
High-temp black oxidizing aluminum foil voice coil

Specifications:
Nominal diameter: 12" (30cm)
Power rating: 300watts
Sensitivity: 99dB
Frequency response: 45-2000hz
Voice coil diameter: 2.5" , CCAW winding