Klipsch Reference R-121SW 12" 400W Powered Subwoofer, Black
Klipsch Reference R-121SW 12" 400W Powered Subwoofer, Black
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Klipsch Reference R-121SW 12" 400W Powered Subwoofer, Black

|89 ratings

Key item features

  • Dynamic Audio: The all-digital amplifier delivers 200W/400W of power, ensuring efficient and dynamic performance for immersive sound in any home theater setup.
  • Seamless Integration: Equipped with line-level/LFE RCA jacks, this subwoofer easily integrates with various audio systems, providing flexible connectivity for enhanced sound.
  • Precise Customization: Adjust volume, low-pass filter, and phase (0/180) to fine-tune bass output, tailoring the sound to your room and preferences for optimal audio quality.
  • Elegant Aesthetics: Finished with black textured wood grain vinyl, this subwoofer blends seamlessly with any decor, adding a touch of elegance to your home entertainment system.
  • Robust Construction: The MDF enclosure with a rear-firing port minimizes distortion, delivering clear and accurate bass while ensuring long-lasting durability and performance.
  • Advanced Woofer: Features revamped spun-copper thermoformed crystalline polymer woofers for exceptionally light, low-frequency response and minimal cone breakup.
  • Thoughtful Design: Includes a front-mounted LED power indicator and a low-profile grille, enhancing aesthetic appeal while maintaining acoustic transparency.
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Specs

Brand, KlipschRms power rating, 400 WWireless technology, BluetoothColor, RedAssembled product weight, 24.29 inInputs & outputs, Line level/LFE RCA jacks

About this item

Product details

Explore the sonic depths with the Klipsch Reference R-121SW 12" 400W Powered Subwoofer, a high-quality audio equipment designed to elevate your home theater experience. This powerful subwoofer is engineered with new tech for cleaner, deeper bass, featuring revamped spun-copper thermoformed crystalline polymer woofers. These woofers are exceptionally light, ensuring low frequency response, minimal cone breakup, and degradation-free distortion for a sound that's as true-to-source as possible.The built-in, all-digital amplifier of this Klipsch subwoofer delivers ample power with high efficiency. It ensures true-to-source accuracy in reproduction, providing best-in-class output, detail, and power. The high-performance 12" front-firing driver offers deep bass and flexible room placement, making it a versatile addition to any home theater setup.The Klipsch Reference R-121SW subwoofer boasts a highly durable and stylish cabinet design, seamlessly integrating into any decor. With scratch-resistant, reinforced 3/4" MDF construction and an all-new bracing design, this subwoofer is built to reduce vibration and withstand the test of time. The front-mounted LED power indicator and low-profile grille add to its aesthetic appeal while maintaining acoustic transparency.This compact subwoofer also features a low pass crossover and phase control, ensuring the subwoofer's low-frequency tones blend harmoniously with other Klipsch speakers. This helps establish your ideal level of bass, enhancing the overall sound quality of your system. With line/LFE inputs, the Klipsch Reference subwoofers are compatible with any home theater receiver, regardless of the make and model. Experience the powerful, high-quality sound of the Klipsch Reference R-121SW 12" 400W Powered Subwoofer and transform your home theater system.

  • Optimized Performance: The all-digital amplifier delivers 200W/400W of power ensuring efficient and dynamic performance for immersive sound in any home theater setup
  • Flexible Connectivity: Equipped with line-level/LFE RCA jacks this subwoofer easily integrates with various audio systems providing seamless connectivity for enhanced sound
  • Precision Control: Adjust volume low-pass filter and phase (0/180) to fine-tune bass output tailoring the sound to your room and preferences for optimal audio quality
  • Sleek Design: Finished with black textured wood grain vinyl this subwoofer blends seamlessly with any decor adding a touch of elegance to your home entertainment system
  • Robust Construction: The MDF enclosure with a rear-firing port minimizes distortion delivering clear and accurate bass while ensuring long-lasting durability and performance
  • High Quality Cabinet Design
  • Front-Mounted LED Power Indicator
  • Low Profile Grille
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Specifications

Brand

Klipsch

Rms power rating

400 W

Wireless technology

Bluetooth

Color

Red

Warranty

Warranty information

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Customer ratings & reviews

4.8 out of 5 stars
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89 ratings88 reviews
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Showing 1-3 of 88 reviews

Sep 7, 2026
Reviewer name: N8KU
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

very tight and powerful

I have this mated with the RS-600M II speakers, this is a very good match - same technology woofers. Of course it has exactly the controls needed to blend seamlessly with just about anything. More than enough oomph to shake my 30'x20' (home theater) room.

Review from klipsch.com
Helpful?70R8EPCJUPWI5223584965
Nov 4, 2025
Reviewer name: Nunya
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Klipsh Rock

I've been Rocking a pair of Fortee II's since 88 and added not only a pair of these bad boys but also added the rest of the top of the line Reference Premium Surround pieces to complete 7.2 surround sound, simply amazing.

Review from klipsch.com
Helpful?70R8EPCJUPWI5223584965
Feb 25, 2025
Reviewer name: Kaven
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Best subwoofer ever buy

Fast delivery

International review
Review from walmart.ca
Helpful?70R8EPCJUPWI5223584965
Current price is $649.99
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