Klipsch KLP-R-121SW-BL Reference Series Subwoofer with Low Pass Crossover and Phase Control, LINE/LFE Inputs, 28Hz-120Hz, Black

Bring clean, impactful low end to your AV, security or monitoring environment with the Klipsch Reference R-121SW subwoofer. Designed for primary use in home theaters, command centers and surveillance monitoring stations, this subwoofer delivers deep, distortion-free bass that helps dialog, alerts and low-frequency effects land with clarity. The R-121SW pairs a 12" spun-copper thermoformed crystalline polymer woofer with an all-digital amplifier to produce tight, accurate output across a 28–120Hz range. Line/LFE RCA inputs and an adjustable low-pass crossover make system integration fast and reliable, while phase control and a front-firing driver let you position the unit for optimal coverage in control rooms or security suites. The reinforced 3/4" MDF cabinet with advanced bracing and a scratch-resistant finish reduces vibration and maintains performance over years of continuous operation. Ideal for integrators specifying audio for surveillance, monitoring or theater applications — upgrade your system with the Klipsch R-121SW for pro-grade bass response and dependable commercial build quality. Contact sales to specify or order.

• Add authoritative, room-filling bass for theaters and monitoring stations with a 12" spun-copper woofer
• Precise low-frequency response (28–120Hz) and all-digital amplification for distortion-free playback and accurate monitoring
• Easy integration with pro AV and security systems via Line/LFE RCA inputs and adjustable low-pass crossover
• Flexible placement: front-firing design plus phase control blends seamlessly with existing speakers in control rooms or surveillance suites
• Built for commercial use with reinforced 3/4" MDF cabinet, advanced bracing and a scratch-resistant finish for lasting reliability