# Klipsch R-121SW 12" Powered Subwoofer

The Reference R-121SW sub-woofer features a distinct combination of cutting edge technologies and proven concepts to deliver an exceptional performance. From the Thermoformed Crystalline Polymer woofers in a striking copper finish, to the sturdy MDF cabinetry, the R-121SW is sure to satisfy your hunger for a deep, rich bass in your films, music and games.

**FEATURES**

-   **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 theatre 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.

###### What You Get

-   1 x Klipsch R-121SW Sub-Woofer
-   1 x User Manual

###### Specifications

-   **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
-   **HEIGHT INCHES (MM):** 16.6"(421 mm)
-   **WIDTH INCHES (MM):** 16"(406 mm)
-   **DEPTH INCHES (MM):** 19.7"(500mm)
-   **PRODUCT WEIGHT LBS (KG):** 16.0 kg
-   FINISHESBlack Textured Wood Grain Viny
-   **Warranty:** 2 Years

## Details

- **Price:** 499.0 GBP
- **Vendor:** Klipsch
- **Type:** Subwoofers
- **Tags:** BLACK5, SALE5

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 499.00 GBP | In stock |

## Images

- Klipsch R-121SW 12" Powered Subwoofer - K&B Audio
- Klipsch R-121SW 12" Powered Subwoofer - K&B Audio
- Klipsch R-121SW 12" Powered Subwoofer - K&B Audio

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> Source: [K&B Audio](https://www.kbaudio.co.uk/products/klipsch-r-121sw-12-powered-subwoofer)
> Updated: 2026-04-29