Klipsch US

R-121SW

Subwoofer

R 121 SW Mobile Block 1
R 121 SW Block 1
R 101 SW Mobile Block 2
R 101 SW Desktop Block 2

New Tech | Cleaner Bass

Revamped spun-copper thermoformed crystalline polymer woofers make the latest Reference subwoofers exceptionally light while providing low frequency response, minimal cone breakup, and degradation-free distortion.

R 121 SW Mobile Block 3
R 121 SW Block 3

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.

R 121 SW Mobile Block 4
R 121 SW Block 4

Front-Firing Driver

The high-performance 12" driver provides deep bass and flexible room placement.

R 121 SW Mobile Block 5
R 121 SW Block 7

Highly Durable & Versatile Cabinet Design

A stylish aesthetic with unrivaled durability that results in a seamless integration into any décor, Reference Subwoofers feature:

  • Scratch-resistant
  • Reinforced ¾" MDF construction
  • All-new bracing design for reduced vibration
  • Front-mounted LED power indicator
  • Low-profile grille for acoustic transparency
R 121 SW Mobile Block 6
R 121 SW Block 5

Low Pass Crossover and Phase Control

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

R 121 SW Mobile Block 7
R 121 SW Block 6

LINE/LFE Inputs

Reference subwoofers are compatible with your home theater receiver, no matter the make and model.

R 121 SW Mobile Block 8
R 121 SW Block 8

Reference Redefined

Check out all of the speakers in the newest generation of the legendary Klipsch Reference series and prepare to have your world rocked.

Documents

Spec Sheet

For more technical detail, download the Spec Sheet here: Reference R 121 SW Spec Sheet .

Product Manual

Download the Product Manual for R-121SW Subwoofer here: Reference Subwoofers 2021 Manual v01 .