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The Klipsch R-121SW Reference 12" Subwoofer delivers powerful, clean bass with advanced technology and a durable design, ideal for enhancing your home theatre or conferencing audio experience. Key Features New Technology for Cleaner Bass: Revamped spun-copper thermoformed crystalline polymer woofers provide low-frequency response with minimal cone breakup and distortion. All-Digital Amplifier: Built-in amplifier offers high efficiency and true-to-source accuracy for best-in-class output and detail. Front-Firing Driver: High-performance 12" driver delivers deep bass and flexible room placement. Highly Durable & Versatile Cabinet Design: Scratch-resistant, reinforced ¾" MDF construction with new bracing to reduce vibration and a low-profile grille for acoustic transparency. Front-Mounted LED Power Indicator: Easily monitor power status. Low Pass Crossover and Phase Control: Ensures seamless blending with other Klipsch speakers and customisable bass levels. Line/LFE Inputs: Compatible with any home theatre receiver, regardless of make or model. Specifications Reference Redefined Explore the latest generation of the legendary Klipsch Reference series and experience exceptional sound quality that transforms your audio environment.