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The Infinity REFERENCE-1070 is a 10-inch subwoofer engineered for enhanced efficiency and higher output in car audio systems. It utilizes progressive spiders, a design that offers superior control at the woofer's excursion limits compared to standard linear spiders. This results in a more controlled cone movement and tighter, more accurate bass characteristics. Featuring high-roll surrounds, a proprietary cone design, and a long-excursion capability, the Reference woofer is built to produce deep, powerful bass with enhanced accuracy. A key feature is the exclusive SSI (Smart Selectable Impedance) switch, allowing users to choose between 2-ohm or 4-ohm impedance for flexible system configuration. The subwoofer is constructed with a polypropylene or aluminum cone and has a shockproof design for added durability. Its mounting type is flush mount and it is not water-resistant.