![Amazon.com: Infinity REF1200S Reference 12 Inch Low Profile Subwoofer with SSI (Selectable Smart Impedance) : Electronics Amazon.com: Infinity REF1200S Reference 12 Inch Low Profile Subwoofer with SSI (Selectable Smart Impedance) : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T1/images/I/61W2sy-IBdL.jpg)
Amazon.com: Infinity REF1200S Reference 12 Inch Low Profile Subwoofer with SSI (Selectable Smart Impedance) : Electronics
![Amazon.com: Infinity REFERENCE-1270 Reference 12 Inch Subwoofer with SSI (Selectable Smart Impedance) : Electronics Amazon.com: Infinity REFERENCE-1270 Reference 12 Inch Subwoofer with SSI (Selectable Smart Impedance) : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T1/images/I/51-RS8Xc0hL._AC_UF350,350_QL80_.jpg)
Amazon.com: Infinity REFERENCE-1270 Reference 12 Inch Subwoofer with SSI (Selectable Smart Impedance) : Electronics
![Amazon.com: Infinity KAPPA-1200W KAPPA 12 Inch Subwoofer with SSI (Selectable Smart Impedance) : Electronics Amazon.com: Infinity KAPPA-1200W KAPPA 12 Inch Subwoofer with SSI (Selectable Smart Impedance) : Electronics](https://m.media-amazon.com/images/I/71rDLyqPFtL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Infinity KAPPA-1200W KAPPA 12 Inch Subwoofer with SSI (Selectable Smart Impedance) : Electronics
![Infinity Kappa 1200W Kappa Series 12" subwoofer with selectable 2- or 4-ohm impedance at Crutchfield Infinity Kappa 1200W Kappa Series 12" subwoofer with selectable 2- or 4-ohm impedance at Crutchfield](https://images.crutchfieldonline.com/ImageHandler/trim/750/457/products/2019/8/108/g108KAPPA2M-F.jpg)