Klipsch R-121SW Reference 12" Subwoofer


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Model: R-121SW UPC: 743878046786 Item: 178545

Product Information

New Tech, Cleaner Bass

Spun-Copper Thermoformed Crystalline Polymer (TCP) Woofers

Thermoformed Crystalline Polymer (TCP) woofers are exceptionally light while being extremely rigid and tightly packed – providing remarkable low frequency response, with minimal cone breakup and distortion without degradation.

All-Digital Amplifier

The built-in, all-digital amplifier delivers ample power with high efficiency and true-tosource accuracy in reproduction, ensuring maximum efficiency for maximum output, detail, and power.

Front-Firing Driver

The high-performance driver provides deep bass and room placement flexibility.

Low Pass Crossover And Phase Control

Ensures the subwoofer’s low-frequency tones blend with other Klipsch speakers and establish the ideal level of bass for your room.

Line/LFE Inputs

Ensures compatibility with home theater receivers.

MDF Cabinet With Scratch-Resistant, Textured Wood Grain Vinyl

Stylish aesthetic with absolute durability that results in a seamless integration into any décor.

High-Quality Cabinet Design

Reinforced 3/4” MDF construction with an all-new bracing design reduces cabinet vibration for less audible coloration and improved sonic accuracy.

Front-Mounted Led Power Indicator

Indicates when the system is on or off.

Low Profile Grille

Adds a refined look that is acoustically transparent.



  • Frequency Range: 28Hz - 120Hz
  • Maximum Acoustic Output: 118 dB
  • Amplifier: All Digital
  • Amplifier Power (Cont/Peak): 200W/400W
  • Amplifier Features: Volume, Low-pass, 0/180 phase, Auto Power On
  • Driver Components: 12" high excursion spun-copper TCP woofer
  • Enclosure Material: MDF
  • Enclosure Type: Bass-Reflex via rear-firing port
  • INPUTS: Line level/LFE RCA jacks
  • Dimensions (W x H x D): 16" x 16.6" x 19.7"
  • Product Weight: 35 lbs
  • Finish: Black Textured Wood Grain Vinyl

What's in the Box

What's in the Box

  • R-121SW Reference 12" Subwoofer


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