Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12" / Home Theater

Klipsch Reference R-121SW / Klipsch / Reference / Subwoofer / Black / Subwoofer / Built-in Amplifier / Class D / 12" / Home Theater

Q: What are the differences between this and the 120sw?

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?

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

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?

This subwoofer has no wireless function, looks like this is just a error in the listing description. This sub only has RCA wired inputs.

Product ID: 734117608

Secure Transaction

Details

Brand
Klipsch
Speaker Maximum Output Power
400 Watts
Frequency Response
1.2E+2 Hz
Connectivity Technology
Auxiliary RCA
Audio Output Mode
Surround

⚡All-digital Class D amplifier

🔊200W powerful output

🖤12" high-performance woofer

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

Description

🎶 Feel the bass, own the room — Klipsch R-121SW delivers power you can’t ignore!

VERSATILE PLACEMENT - Compact 12" driver design adapts seamlessly to any room layout or home theater setup.
SEAMLESS INTEGRATION - Perfectly complements TVs, smartphones, and tablets for immersive audio experiences.
POWER MEETS EFFICIENCY - Built-in all-digital Class D amplifier ensures maximum power with minimal energy waste.
SLEEK MODERN AESTHETIC - Matte black finish blends effortlessly with contemporary home decor.
DEEP DISTORTION FREE BASS - TCP woofer delivers punchy, crystal-clear low frequencies that fill your space.

The Klipsch Reference R-121SW is a 12-inch active subwoofer featuring a lightweight yet durable Thermoformed Crystalline Polymer woofer and a high-efficiency all-digital Class D amplifier delivering 200 watts of distortion-free bass. Designed for versatile home theater setups, it offers deep, powerful low-end sound with a sleek black finish and compact dimensions, perfect for enhancing audio from TVs, smartphones, and tablets.

Specifications

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

Have a Question? See What Others Asked

What are the differences between this and the 120sw?

When in auto position the led green light remains on even when the amp is off. is this normal?

Can you use a wireless kit with this sub

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?

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App