Klipsch R-121SW 12" Subwoofer
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Klipsch R-121SW 12" Subwoofer
Overview
Bigger rooms and bass-heavy movie scenes ask more of a subwoofer than most compact setups can deliver, and running out of headroom is the fastest way to lose the impact of a soundtrack. The Klipsch R-121SW is built to keep up.
The R-121SW is a 12" powered subwoofer built around a spun-copper thermoformed crystalline polymer (TCP) woofer that stays light and rigid even when it's working hard, keeping cone breakup and distortion low at high output. An all-digital amplifier drives it with 200W of continuous power (400W peak), and a rear-firing bass-reflex port extends response down to 28Hz.
A low-pass crossover, 0°/180° phase switch, and auto power-on let you blend the sub cleanly with your main speakers, and Line/LFE RCA inputs make it compatible with virtually any AV receiver. The MDF cabinet is finished in scratch-resistant textured wood grain vinyl, with a front-mounted LED indicator and low-profile grille.
Simcoe Audio Video Insight
For Central Ontario clients with larger great rooms or dedicated theatres, the R-121SW's extra cone area over the 10" R-101SW means it reaches the same output with less strain, which usually translates to cleaner, more controlled bass at reference volume. As with any ported sub, give the rear-firing port a few inches of clearance from the wall.
More Info
Why the Klipsch R-121SW Stands Out
12" Spun-Copper TCP Woofer
Light, rigid, and low-distortion, built to handle high output without cone breakup.
All-Digital 200W Amplifier
Delivers 200W continuous (400W peak) with high efficiency and true-to-source accuracy.
Deep Bass-Reflex Extension
A rear-firing port extends response down to 28Hz for real low-end depth.
Adjustable Crossover & Phase Control
A low-pass crossover and 0°/180° phase switch blend the sub cleanly with your main speakers.
Line/LFE Inputs for Any Receiver
Standard RCA Line/LFE inputs make it compatible with virtually any AV receiver.
Durable, Scratch-Resistant Cabinet
MDF construction with a textured wood grain vinyl finish and low-profile grille.
Buyer's Guide
Who It's For
- The Large-Room Home Theater Owner: needs more cone area and output than a smaller sub can provide.
- The Reference System Owner: pairs naturally with Klipsch R-Series bookshelf, centre, and tower speakers.
- The Action-Movie Fan: wants extra headroom for demanding low-frequency effects.
How It Compares
The R-121SW sits above the 10" R-101SW in Klipsch's Reference subwoofer line. Both share the same spun-copper TCP woofer design, all-digital amplifier, and bass-reflex cabinet, but the R-121SW's larger 12" driver and 200W amplifier extend response further (28Hz vs. 29.5Hz) and add headroom (118dB vs. 115dB max output). For a typical living room, the R-101SW is plenty; for a larger space or reference-level output, the R-121SW is the stronger choice.
Klipsch R-121SW 12" Subwoofer Specifications
| General Information | |
|---|---|
| Model | Klipsch R-121SW |
| Type | Powered Subwoofer |
| Audio | |
| Driver | 12" High-Excursion Spun-Copper TCP Woofer |
| Amplifier | All-Digital, 200W Continuous / 400W Peak |
| Frequency Response | 28Hz – 120Hz |
| Maximum Acoustic Output | 118 dB |
| Enclosure Type | Bass-Reflex (Rear-Firing Port) |
| Amplifier Features | Volume, Low-Pass Crossover, 0°/180° Phase Switch, Auto Power On |
| Connectivity | |
| Inputs | Line/LFE RCA |
| Physical Specifications | |
| Enclosure Material | MDF, Scratch-Resistant Textured Wood Grain Vinyl |
| Dimensions (H x W x D) | 16.6" x 16" x 19.7" (421 x 406 x 500 mm) |
| Weight | 35 lbs (16.0 kg) |
| Finish | Black Textured Wood Grain Vinyl |
| Indicators | Front-Mounted LED Power Indicator |