High Roll Double Laminated Foam Surround. Expanded and Rolled Steel Basket. Magnet Motor Heatsink with Heat Pump Cooling Technology. Solid Core Magnet Motor Structure. Linear Progressive Conex Spiders. Integrated High-Current Tinsel Leads. High Temperature Aluminum Voice Coil Former. Ultra Saturated, High "BL" Magnetic Motor Gap. Extended Pole Technology. Stylized Magnet Protection...
This is a nice quality Trutech Subwoofer . It features an impedance of 6 ohms.