Features:
184 oz. Ceramic Ferrite Magnet
Low Carbon Steel and Bottom Plates
1.5" Wide DFM Foam Blend
Designed to Optimize SPL Performance
High Excursion Spider Design
Dual 4 Ohm Voice Coils

Specs:
Structure: 15" (38.1cm) Woofer
Dynamic Power Handling: 4000 Watts
Nominal Power Handling: 2000 Watts
Impedance: Dual 4 Ohm Voice Coil