Here is an Elemental Designs Model 160V.2 Dual 2 15" Dual Voice Coil Subwoofer.  The only specs I could find on the internet were: High Excursion Dual 4,2 Ohm VC, 850W Max Power, 0 550E. Heavy Duty Rubber Surround, Push Terminal Connectors. This sub came from a powered sub enclosure that had a bad power amp. Perfect Condition. Actual weight is 27 lbs. Can be used in home or auto applications. Thanks for looking.