Klipsch Reference R-121SW 12″ Ported Subwoofer – Black

The Klipsch Reference R‑121SW 12″ Ported Subwoofer is a powerful and versatile powered subwoofer designed to add deep, impactful low-frequency performance to your home theater or music system. Built around a front-firing 12-inch high-excursion spun-copper Thermoformed Crystalline Polymer (TCP) woofer, it delivers robust bass with minimal distortion and excellent mechanical fidelity for immersive audio reproduction. The subwoofer is driven by an all-digital amplifier delivering about 200 W RMS and 400 W peak power, providing strong output and expressive dynamics while maintaining efficiency and clarity across a wide range of listening levels. Its ported (bass-reflex) cabinet design enhances low-frequency extension, offering deep rumble and room-filling bass that brings blockbuster movies and bass-rich music to life.

Designed with flexibility in mind, the R-121SW features low-pass crossover and phase controls that allow you to fine-tune the bass integration with your main speakers for a seamless soundstage. A Line/LFE RCA input ensures easy compatibility with most AV receivers and home theater systems, while an auto-on/off function adds convenience and energy efficiency. The rugged ¾″ MDF cabinet with reinforced bracing reduces resonance and vibration for cleaner sound, and the scratch-resistant textured vinyl finish in Black blends elegantly with contemporary décor. A front-mounted LED power indicator and low-profile grille complete the refined aesthetic while providing intuitive status feedback. With a frequency response around 28 Hz–120 Hz and maximum acoustic output up to 118 dB, the R-121SW combines performance, flexibility, and style in a subwoofer that significantly enhances your overall audio experience.

Features

• 12″ high-excursion woofer for deep bass
• Ported cabinet design for stronger low-frequency output
• All-digital amplifier with ample power for movies and music
• Variable low-pass crossover for tuning to your system
• Phase control switch (0/180°) for better integration with speakers
• Auto-on/off feature to save energy
• Line-level/LFE RCA input for easy connection
• Sturdy MDF cabinet construction for reduced resonance
• Scratch-resistant black finish
• Front LED power indicator for status at a glance

Specifications

T1S9M8E0/00-AD