The Klipsch Reference R-121SW 12” wireless subwoofer features an innovative 12” spun-copper thermoformed crystalline polymer woofer that is exceptionally light and provides low-frequency response, minimal cone breakup, and degradation-free distortion. The front-firing subwoofer allows you to place the sub wherever you want, while the all-digital amplifier delivers ample power with Klipsch's signature high efficiency.


New Tech, Cleaner Bass
Innovative 12” spun-copper thermoformed crystalline polymer woofers (TCP) make Reference subwoofers exceptionally light while providing low-frequency response, minimal cone breakup, and degradation-free distortion.


All-Digital Amplifier
The built-in, all-digital amplifier delivers ample power with high efficiency and true-to-source accuracy in reproduction, ensuring maximum efficiency for best-in-class output, detail, and power.


Front-Firing Driver
The high-performance driver provides deep bass and flexible room placement.


Low Pass Crossover And Phase Control
Ensures the subwoofer’s low-frequency tones blend with other Klipsch speakers and establish an ideal level of bass.


Line/LFE Inputs
Reference subwoofers are compatible with all home theater receivers, no matter the make and model.


Highly Durable And Versatile Cabinet Design
A stylish aesthetic with unrivaled durability that results in a seamless integration into any décor, Reference Subwoofers feature a scratch-resistant finish, reinforced ¾” MDF construction with an advanced bracing design for reduced cabinet vibration, a front-mounted LED power indicator, and a low-profile grille for acoustic transparency.