---
product_id: 505664823
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: "577013 Ft"
currency: HUF
in_stock: true
reviews_count: 13
category: "Klipsch"
url: https://www.desertcart.hu/products/505664823-klipsch-reference-r-121sw-12-front-firing-subwoofer-with-revamped
store_origin: HU
region: Hungary
---

# All-digital amplifier power Compact 16.6" x 16" x 19.7" 12” spun-copper woofer 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:** 577013 Ft
**Availability:** ✅ In Stock

## Summary

> 🎶 Feel the bass, own the room — don’t just hear it, live it!

## 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?** 577013 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/505664823-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

- • **Seamless Integration:** Low-pass crossover and phase control ensure perfect harmony with your existing Klipsch speakers for a cohesive audio experience.
- • **Power Meets Precision:** All-digital amplifier delivers high-efficiency, true-to-source sound that fills your space with rich, controlled bass.
- • **Built to Last & Impress:** Durable, scratch-resistant MDF cabinet with advanced bracing reduces vibration while adding a sleek, modern aesthetic.
- • **Deep, Distortion-Free Bass:** Experience crystal-clear low frequencies with the ultra-light spun-copper crystalline polymer woofer designed for minimal cone breakup.
- • **Flexible Placement, Maximum Impact:** Front-firing driver and low-profile design let you position your subwoofer anywhere without sacrificing style or performance.

## Overview

The Klipsch Reference R-121SW is a premium 12-inch front-firing subwoofer featuring a revolutionary spun-copper thermoformed crystalline polymer woofer for ultra-lightweight, distortion-free bass. Powered by an all-digital amplifier, it delivers efficient, high-fidelity low frequencies with flexible placement options and advanced controls to blend seamlessly with your home theater setup. Its robust, vibration-resistant cabinet and sleek design make it a must-have for audiophiles seeking powerful, precise bass that transforms any room.

## 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.

Review: Pleasently Surprising Oomph - Great sub! Connected this baby to my other Klipsch speakers via the sub out port and it worked instantly. (I did have to buy a separate insulated sub wire as this product does not come with one) I was able to get this on sale for 50% off and for that price it's amazing! The subwoofer is larger than expected, but I'm considering that a good thing in the end. (No need to upgrade in the future for me) The adjustable sound allows for subtle bass or wall shaking bass. All and all, this was more than I could have expected for the price!
Review: Lightweight, good performance, rumbles the lows but with control - I don't have the world's best back so the light weight of this subwoofer relative to its size and performance was appealing. It has good extension and can reproduce quite low frequencies, though its EQ has a hump at about 55hz. You can EQ that out or just enjoy it, nobody is going to make you stop! Group delay is good for its size and rear-ported construction as well, better even than some vaunted performers in its on sale price range. Ample dynamic range for cinematic low frequencies and when dialed in, it has a lively and relatively quick low frequency reinforcement for music as well. I pair mine with Klipsch RP-600m (first gen, love them) and set the crossover to reinforce from about 60hz down. Its loudness has been more than enough for my space, it can overwhelm the living room it is in when movies rumble! Feel it moving that low low air into the kitchen and other rooms even. But, to be maximally fair, if you are in a very large room you might want to consider a larger diameter speaker model or perhaps a higher output unit. I've had zero complaints about it's output but it is somewhat conservative compared to the Reference Premiere subs and some competitors, and it has rock solid DSP limiting that stops it from exceeding its capabilities. In my personal use even with bass impact action films I have not met its limits!

## 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 |
|---------------|-------|
| ASIN | B09P8WJTB3 |
| Audio Driver Size | 12 Inches |
| Audio Driver Type | Bass Driver |
| Best Sellers Rank | #29,496 in Electronics ( See Top 100 in Electronics ) #47 in Home Audio Subwoofers |
| Color | Black |
| Compatible Devices | Television |
| Control Method | Touch |
| Customer Reviews | 4.8 4.8 out of 5 stars (129) |
| Date First Available | May 16, 2022 |
| Included Components | Speaker |
| Is Waterproof | FALSE |
| Item Weight | 34.2 pounds |
| Item model number | R-121SW |
| Manufacturer | Klipsch |
| Material | Copper |
| Model Name | R-121SW |
| Mounting Type | Floor Standing |
| Number Of Circuits | 1 |
| Number of Items | 1 |
| Number of Power Levels | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 19.7"D x 16"W x 16.6"H |
| Recommended Uses For Product | For Televisions |
| Series Number | 12 |
| Shape | rectangular prism |
| Speaker Size | 12 Inches |
| Speaker Type | Subwoofer |
| Special Feature | Digital Amplifier |
| Specific Uses For Product | Television, Home Theater, Movie Theater |
| Style | modern |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 12 Inches |
| Surround Sound Channel Configuration | 5.1 |
| UPC | 743878046786 |
| Unit Count | 1.0 Count |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Communication Technology | Bluetooth |
| Woofer Diameter | 12 Inches |

## Product Details

- **Audio Output Mode:** Surround
- **Brand:** Klipsch
- **Connectivity Technology:** Speaker Wire
- **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/41ESM-nl-8L.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/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 3](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 4](https://m.media-amazon.com/images/I/51FcqO-GruL.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/51LIoKLXuqL.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

### ⭐⭐⭐⭐⭐ Pleasently Surprising Oomph
*by W***M on January 6, 2026*

Great sub! Connected this baby to my other Klipsch speakers via the sub out port and it worked instantly. (I did have to buy a separate insulated sub wire as this product does not come with one) I was able to get this on sale for 50% off and for that price it's amazing! The subwoofer is larger than expected, but I'm considering that a good thing in the end. (No need to upgrade in the future for me) The adjustable sound allows for subtle bass or wall shaking bass. All and all, this was more than I could have expected for the price!

### ⭐⭐⭐⭐⭐ Lightweight, good performance, rumbles the lows but with control
*by J***F on June 10, 2025*

I don't have the world's best back so the light weight of this subwoofer relative to its size and performance was appealing. It has good extension and can reproduce quite low frequencies, though its EQ has a hump at about 55hz. You can EQ that out or just enjoy it, nobody is going to make you stop! Group delay is good for its size and rear-ported construction as well, better even than some vaunted performers in its on sale price range. Ample dynamic range for cinematic low frequencies and when dialed in, it has a lively and relatively quick low frequency reinforcement for music as well. I pair mine with Klipsch RP-600m (first gen, love them) and set the crossover to reinforce from about 60hz down. Its loudness has been more than enough for my space, it can overwhelm the living room it is in when movies rumble! Feel it moving that low low air into the kitchen and other rooms even. But, to be maximally fair, if you are in a very large room you might want to consider a larger diameter speaker model or perhaps a higher output unit. I've had zero complaints about it's output but it is somewhat conservative compared to the Reference Premiere subs and some competitors, and it has rock solid DSP limiting that stops it from exceeding its capabilities. In my personal use even with bass impact action films I have not met its limits!

### ⭐⭐⭐⭐⭐ WOW
*by R***D on January 11, 2026*

Excellent subwoofer a definite upgrade from my original sub. Earthshaking bass round and smooth no distortion no baffling. Great buy

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-01*