Infinity 120.9w Kappa Series 12" subwoofer with selectable 2- or 4-ohm impedance | eBay
Infinity - Kappa 100.9w - 10 inch High Performance Selectable Impedance Subwoofer (1400W): Buy Infinity - Kappa 100.9w - 10 inch High Performance Selectable Impedance Subwoofer (1400W) Online at Low Price in India on Snapdeal
Best Buy: Infinity Kappa 10" Single-Voice-Coil 4-Ohm Subwoofer Silver 100.9W