---
product_id: 734117608
title: "Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12\" / Home Theater"
brand: "klipsch"
price: "$8074693"
currency: COP
in_stock: false
reviews_count: 5
url: https://www.desertcart.co/products/734117608-klipsch-reference-r-121sw-klipsch-reference-subwoofer-black-subwoofer-built
store_origin: CO
region: Colombia
---

# 12-inch TCP woofer 200W peak power All-digital Class D amp Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12" / Home Theater

**Brand:** klipsch
**Price:** $8074693
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate your home theater with bass that speaks louder than words!

## 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?** $8074693 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/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

- • **Powerful 200W Output:** Feel every beat with room-shaking bass that commands attention.
- • **Seamless Integration:** Plug-and-play compatibility with your Klipsch system and TVs for instant audio elevation.
- • **Flexible Room Placement:** Rear port design adapts seamlessly to your space, maximizing bass impact without clutter.
- • **Advanced Class D Amplifier:** Experience crystal-clear, distortion-free sound with cutting-edge digital efficiency.
- • **12" Thermoformed Crystalline Polymer Woofer:** Lightweight yet robust driver delivers deep, precise bass for immersive home theater vibes.

## Overview

The Klipsch Reference R-121SW is a high-performance 12-inch subwoofer featuring a lightweight Thermoformed Crystalline Polymer woofer and a built-in all-digital Class D amplifier delivering up to 200 watts of powerful, distortion-free bass. Designed for flexible placement and seamless integration with home theater systems, it transforms your audio experience with deep, precise low frequencies.

## Description

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

Review: 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: Great product I have four of them ✔️

## 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 |
|---------------|-------|
| ASIN | B09P8WJTB3 |
| Amazon Bestseller | #386,880 in Electronics ( See Top 100 in Electronics ) #128 in Home Audio Subwoofers |
| Color | Black |
| Color Name | Black |
| Compatible Devices | Television |
| Control Method | Remote |
| Customer Reviews | 4.8 4.8 out of 5 stars (122) |
| Date First Available | May 24, 2023 |
| Included Components | ----- |
| Is Waterproof | False |
| Item Weight | 34.2 Pounds |
| Item model number | R-121SW |
| Material | Copper |
| Material Type | Copper |
| Model Name | R-121SW |
| Mounting Type | Tabletop Mount |
| Number of Items | 1 |
| Output Wattage | 200 Watts |
| Power Source | Wire |
| Product Dimensions | 50D x 40.6W x 42.1H cm |
| Recommended Uses For Product | For Smartphones or Tablets, For Televisions |
| Speaker Amplification Type | Active |
| Speaker Size | 12 Inches |
| Speaker Type | Subwoofer |
| Special Feature | Digital Amplifier |
| Subwoofer Diameter | 30.48 Centimeters |
| Surround Sound Channel Configuration | 5.1 |
| Warranty Type | 1 year manufacturer warranty |
| Wattage | 200 W |
| Wireless Communication Technology | Bluetooth |

## Product Details

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

## 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/41ESM-nl-8L.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/41jynFqUD0L.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/51FX7KtCy4L.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/51FcqO-GruL.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/51QRwYpFf-L.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

### ⭐⭐⭐⭐⭐ Review
*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!

### ⭐⭐⭐⭐⭐ Review
*by K***D on January 26, 2026*

Great product I have four of them ✔️

### ⭐⭐⭐⭐⭐ Review
*by E***O on October 18, 2024*

Estou usando esse subwoofer em uma sala de 40m2. Ele tem a presença do subgrave muito nítida e forte. Mesmo em volumes baixos. Toca muito bem, subwoofer de impacto, muito top mesmo.

## 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 Colombia*
*Store origin: CO*
*Last updated: 2026-02-22*