---
product_id: 734117608
title: "Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12\" / Home Theater"
brand: "klipsch"
price: "€ 432.84"
currency: EUR
in_stock: false
url: https://www.desertcart.sk/products/734117608-klipsch-reference-r-121sw-klipsch-reference-subwoofer-black-subwoofer-built
store_origin: SK
region: Slovakia
---

# 200W Class D digital amplifier Low distortion TCP woofer 12" high-performance driver Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12" / Home Theater

**Brand:** klipsch
**Price:** € 432.84
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Feel the bass, own the room.

## Quick Answers

- **What is this?** Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12" / Home Theater by klipsch
- **How much does it cost?** € 432.84 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/734117608-klipsch-reference-r-121sw-klipsch-reference-subwoofer-black-subwoofer-built)

## 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

- • **Flexible Placement:** Rear ported design and compact tabletop mount fit seamlessly into any room layout without compromising sound quality.
- • **Efficient Powerhouse:** Built-in all-digital Class D amplifier pumps out 200W RMS (400W peak) for crystal-clear, high-fidelity bass with maximum energy efficiency.
- • **Sleek, Durable Design:** Robust copper material and elegant black finish ensure your subwoofer looks as premium as it sounds, backed by a 1-year manufacturer warranty.
- • **Seamless Compatibility:** Optimized for 5.1 surround sound setups and compatible with TVs, smartphones, and tablets for versatile entertainment options.
- • **Deep, Room-Filling Bass:** 12-inch Thermoformed Crystalline Polymer woofer delivers powerful, distortion-free low frequencies that transform your home theater experience.

## Overview

The Klipsch Reference R-121SW is a premium 12-inch subwoofer featuring a lightweight yet durable Thermoformed Crystalline Polymer woofer and a powerful 200W Class D digital amplifier. Designed for home theater enthusiasts, it delivers deep, distortion-free bass with flexible placement options and broad device compatibility, all wrapped in a sleek black copper finish.

## Description

Subwoofer R-121SW Class D Amplifier Bus Reflex - Rear Port, (Rating / Max): 200W/400W

## Features

- SPANCOPPER Thermoformed Crystalline Polymer Woofer: The TCP (Thermoformed Crystalline Polymer) woofer plays powerful bass that is lightweight and strong, while minimizing sound distortion
- All-Digital Amplifier: The built-in all-digital amplifier provides ample power, high efficiency and source fidelity playback to ensure maximum efficiency that produces best-in-class output, detail and power
- Equipped with a high-performance 12" driver for deep bass and flexible room layout

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Mounting Type | Tabletop Mount |
| Material | Copper |
| Model Name | R-121SW |
| Speaker Type | Subwoofer |
| Special Feature | Digital Amplifier |
| Recommended Uses For Product | For Smartphones or Tablets, For Televisions |
| Compatible Devices | Television |
| Subwoofer Diameter | 30.48 Centimeters |
| Surround Sound Channel Configuration | 5.1 |
| Color | Black |
| Included Components | ----- |
| Product Dimensions | 50D x 40.6W x 42.1H cm |
| Item Weight | 15.51 kg |
| Is Waterproof | False |
| Warranty Type | 1 year manufacturer warranty |
| Number of Items | 1 |
| Control Method | Remote |
| Wireless Communication Technology | Bluetooth |
| Speaker Size | 12 Inches |
| Power Source | Wire |
| Item model number | R-121SW |
| Color Name | Black |
| Speaker Amplification Type | Active |
| Material Type | Copper |
| Output Wattage | 200 Watts |
| Wattage | 200 W |

## Product Details

- **Brand:** Klipsch
- **Speaker Maximum Output Power:** 400 Watts
- **Frequency Response:** 120 Hz
- **Connectivity Technology:** Auxiliary, RCA
- **Audio Output Mode:** Surround

## Images

![Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12" / Home Theater - Image 1](https://m.media-amazon.com/images/I/51FX7KtCy4L.jpg)
![Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12" / Home Theater - Image 2](https://m.media-amazon.com/images/I/611OSN0AurL.jpg)
![Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12" / Home Theater - Image 3](https://m.media-amazon.com/images/I/51QRwYpFf-L.jpg)
![Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12" / Home Theater - Image 4](https://m.media-amazon.com/images/I/41jynFqUD0L.jpg)
![Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12" / Home Theater - 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.

## 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
- klipsch Reference Next-Generation R-30C Horn-Loaded Center Channel Speakers for Crystal-Clear Home Theater Dialogue in Black
- 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 Slovakia*
*Store origin: SK*
*Last updated: 2026-01-23*