---
product_id: 505664823
title: "Reference Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers"
brand: "klipsch"
price: "5268.56 DT"
currency: TND
in_stock: true
category: "Klipsch"
url: https://www.desertcart.tn/products/505664823-reference-front-firing-subwoofer-with-revamped-spun-copper-thermoformed-crystalline
store_origin: TN
region: Tunisia
---

# All-digital amplifier with 400W power Front-firing driver for flexible placement 12” spun-copper woofer for deep bass Reference Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers

**Brand:** klipsch
**Price:** 5268.56 DT
**Availability:** ✅ In Stock

## Summary

> 🎶 Feel the bass, own the room — Klipsch R-121SW redefines home audio power.

## Quick Answers

- **What is this?** Reference Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers by klipsch
- **How much does it cost?** 5268.56 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/505664823-reference-front-firing-subwoofer-with-revamped-spun-copper-thermoformed-crystalline)

## 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 in the room without sacrificing performance.
- • **Power Meets Efficiency:** All-digital amplifier pumps out 400 watts of clean, high-efficiency power for immersive sound without compromise.
- • **Precision Bass Mastery:** 12” spun-copper woofer delivers distortion-free, deep low frequencies that make every beat feel alive.
- • **Universal Compatibility:** Line/LFE inputs guarantee easy hookup with any AV receiver, making upgrades effortless.
- • **Seamless Sound Integration:** Low-pass crossover and phase control ensure perfect harmony with your Klipsch speakers for a flawless audio experience.

## Overview

The Klipsch Reference R-121SW is a 12-inch front-firing subwoofer featuring a lightweight spun-copper thermoformed crystalline polymer woofer for minimal distortion and deep bass. Powered by a 400-watt all-digital amplifier, it offers high efficiency and true-to-source sound reproduction. With adjustable low-pass crossover and phase controls, plus universal Line/LFE inputs, it seamlessly integrates into any home theater setup, delivering powerful, precise low-frequency performance.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09P8WJTB3 |
| Additional Features | Digital Amplifier |
| Antenna Location | For Televisions |
| Audio Driver Size | 12 inches |
| Audio Driver Type | Bass Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #15,050 in Electronics ( See Top 100 in Electronics ) #20 in Home Audio Subwoofers |
| Brand | Klipsch |
| Built-In Media | Speaker |
| Color | Black |
| Compatible Devices | Television |
| Compatible with Vehicle Type | Car |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Speaker Wire |
| Control Method | Touch |
| Controller Type | Touchpad |
| Customer Reviews | 4.7 4.7 out of 5 stars (198) |
| Enclosure Material | Copper |
| Frequency Response | 120 hertz |
| Is Waterproof | False |
| Item Dimensions D x W x H | 19.7"D x 16"W x 16.6"H |
| Item Weight | 34.2 pounds |
| Manufacturer | Klipsch |
| Model Name | R-121SW |
| Model Number | R-121SW |
| Mounting Type | Floor Standing |
| Number Of Circuits | 1 |
| Number of Audio Channels | 5.1 |
| 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 | Television, Home Theater, Movie Theater |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 12 inches |
| UPC | 743878046786 |
| Unit Count | 1 Count |
| Warranty Description | 5 year manufacturer |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 12 inches |

## Product Details

- **Audio Output Mode:** Surround
- **Brand:** Klipsch
- **Connectivity Technology:** Speaker Wire
- **Frequency Response:** 120 hertz
- **Speaker Maximum Output Power:** 400 watts

## Images

![Reference Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers - Image 1](https://m.media-amazon.com/images/I/51FX7KtCy4L.jpg)

## Available Options

This product comes in different **Size** options.

## 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.

## Frequently Bought Together

- 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
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- klipsch Reference Next-Generation R-50M Horn-Loaded Bookshelf Speakers with 5.25” Spun-Copper Woofers for Best-in-Class Home Theater Sound in Black

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-30*