---
product_id: 675469017
title: "klipsch Reference R-121SW 12” Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers and an All-Digital Amplifier for Premium Sound in Black"
brand: "klipsch"
price: "€ 2967.77"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.gr/products/675469017-klipsch-reference-r-121sw-12-front-firing-subwoofer-with-revamped
store_origin: GR
region: Greece
---

# All-digital amplifier with 400W power Front-firing driver for flexible placement 12” spun-copper woofer for deep bass klipsch Reference R-121SW 12” Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers and an All-Digital Amplifier for Premium Sound in Black

**Brand:** klipsch
**Price:** € 2967.77
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game — don’t just listen, experience the bass!

## Quick Answers

- **What is this?** klipsch Reference R-121SW 12” Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers and an All-Digital Amplifier for Premium Sound in Black by klipsch
- **How much does it cost?** € 2967.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/675469017-klipsch-reference-r-121sw-12-front-firing-subwoofer-with-revamped)

## Best For

- klipsch enthusiasts

## Why This Product

- Trusted klipsch brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Placement Freedom:** Front-firing design lets you position your subwoofer anywhere without compromising sound quality.
- • **Seamless Integration:** Low-pass crossover and phase control blend perfectly with your Klipsch speakers for a flawless audio setup.
- • **Power Meets Precision:** All-digital amplifier ensures crystal-clear sound with 400 watts of efficient, true-to-source power.
- • **Built to Last & Impress:** Durable, scratch-resistant MDF cabinet with sleek low-profile grille adds a modern touch to your space.
- • **Immersive Bass Experience:** Feel every beat with the ultra-light 12” spun-copper woofer delivering distortion-free low frequencies.

## Overview

The Klipsch Reference R-121SW is a premium 12” front-firing subwoofer featuring a lightweight spun-copper thermoformed crystalline polymer woofer and a powerful 400W all-digital amplifier. Designed for flexible placement and seamless integration with Klipsch systems, it delivers deep, distortion-free bass with advanced crossover and phase controls, all housed in a durable, stylish cabinet perfect for any modern home theater or audio setup.

## Description

The Klipsch Reference R-121SW 12” subwoofer features a revamped 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 in your space, while the all-digital amplifier delivers ample power with Klipsch signature high efficiency.

## Features

- New 12” spun-copper thermoformed crystalline polymer woofers: 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 your ideal level of bass.
- Line/LFE inputs: Ensure compatibility with the AV Receiver of your choice
- Durable and Versatile Cabinet Design: A scratch-resistant, reinforced ¾” MDF construction with an all-new bracing design creates reduced cabinet vibration.
- LED Front-Mounted Power Indicator
- Low-profile grille: offers a chic touch and acoustic transparency.
- Dimensions: 16.6" H X 16" W X 19.7" D

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Additional Features | Digital Amplifier |
| Antenna Location | For Surround Sound Systems, For Televisions |
| Asin | B09P8WJTB3 |
| Audio Driver Size | 12 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #171,806 in Electronics (See Top 100 in Electronics) #145 in Home Audio Subwoofers |
| Brand | Klipsch |
| Built In Media | Subwoofer, Power Cord, User Manual |
| Color | black / black |
| Compatible Devices | Television, Laptop, Tablet, Smartphone |
| Compatible With Vehicle Type | Car |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | USB |
| Control Method | Touch |
| Controller Type | Touchpad |
| Customer Reviews | 4.8 4.8 out of 5 stars (142) 4.8 out of 5 stars |
| Enclosure Material | MDF |
| Frequency Response | 120 Hz |
| Is Electric | Yes |
| Is Waterproof | False |
| Item Dimensions D X W X H | 50D x 40.6W x 42.2H centimeters |
| Item Weight | 15.51 kg |
| Manufacturer | Klipsch |
| Model Name | R-121SW |
| Model Number | R-121SW |
| Mounting Type | Floor Standing |
| Mp3 Player | No |
| Number Of Audio Channels | 2.1 |
| Number Of Circuits | 1 |
| Number Of Items | 1 |
| Number Of Power Levels | 1 |
| Power Source | Corded Electric |
| Series Number | 12 |
| Speaker Maximum Output Power | 400 Watts |
| Speaker Size | 12 Inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | Home Theater, Surround Sound Systems, Games, Computer, Television |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 12 Inches |
| Unit Count | 1 Count |
| Upc | 743878046786 |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 30.48 Centimeters |

## Product Details

- **Audio output mode:** Surround
- **Brand:** Klipsch
- **Connectivity technology:** USB
- **Frequency response:** 120 Hz
- **Speaker maximum output power:** 400 Watts

## Images

![klipsch Reference R-121SW 12” Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers and an All-Digital Amplifier for Premium Sound in Black - Image 1](https://m.media-amazon.com/images/I/51FX7KtCy4L.jpg)
![klipsch Reference R-121SW 12” Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers and an All-Digital Amplifier for Premium Sound in Black - Image 2](https://m.media-amazon.com/images/I/611OSN0AurL.jpg)
![klipsch Reference R-121SW 12” Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers and an All-Digital Amplifier for Premium Sound in Black - Image 3](https://m.media-amazon.com/images/I/51QRwYpFf-L.jpg)
![klipsch Reference R-121SW 12” Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers and an All-Digital Amplifier for Premium Sound in Black - Image 4](https://m.media-amazon.com/images/I/41jynFqUD0L.jpg)
![klipsch Reference R-121SW 12” Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers and an All-Digital Amplifier for Premium Sound in Black - Image 5](https://m.media-amazon.com/images/I/51FcqO-GruL.jpg)

## Questions & Answers

**Q: What are the differences between this and the 120sw?**
A: The R-121SW  has an updated woofer driver and a larger batter braced cabinet. It is able to produce a bit more bass and sound tighter.

**Q: When in auto position the led green light remains on even when the amp is off. is this normal?**
A: The subwoofer should shut off after about 15 minutes of no signal from the amp so it will not happen right as you shut the amp off. If the sub is still not going on standby, there may be some noise coming from the amp or wiring between the amp and subwoofer that is keeping the sub from going to sleep. Reach out to our support team through our website if you need further support.

**Q: Can you use a wireless kit with this sub**
A: You can use a 3rd party wireless kit that will connect using rca connections on the back of the sub. We do not make a wireless kit that will work with this subwoofer here. Thank you.

**Q: The product description and information say that this sub is wireless. How does it receive the signal from the receiver? Is there a transmitter, also?**
A: This subwoofer has no wireless function, looks like this is just a error in the listing description. This sub only has RCA wired inputs.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best sub I ever had so far
*by  on Reviewed in South Africa 27 June 2026*

Thank you Klipsch, very very powerful sub best I ever had. Budgeting for a second one

### ⭐⭐⭐⭐⭐ Impressive
*by  on Reviewed in the United States 8 June 2026*

I had just returned a more premium branded sub that cost 3 times as much. This blows that out of the water! Definitely worth it. I was highly surprised. Has plenty of power and sound is deep and rumbling like thunder.

### ⭐⭐⭐⭐⭐ High Power Bass for Home Theatre or Stereo Systems
*by  on Reviewed in Canada 26 January 2026*

Great product I have four of them ✔️

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-17*