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

SKU: R-121SW Klipsch
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Product images for Klipsch KLP-R-121SW-BL Reference Series Subwoofer with Low Pass Crossover and Phase Control, LINE/LFE Inputs, 28Hz-120Hz, Black. 5 image(s) available. Click on image to view full size.

Key Features

  • 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

Quick Specifications

Product Model
R-121SW
Brand Name
Klipsch
Product Series
Reference
Manufacturer Part Number
KLP-R-121SW
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Product information

R-121SW

Overview

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.

Features

  • 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
10 of 10 specifications
Technical specifications for Klipsch KLP-R-121SW-BL Reference Series Subwoofer with Low Pass Crossover and Phase Control, LINE/LFE Inputs, 28Hz-120Hz, Black
General Information
Brand Name Klipsch
Product Series Reference
Manufacturer Part Number KLP-R-121SW
Technical Information
Frequency Range 28-120Hz
Earpiece
Driver Size 12"
Physical Characteristics
Weight 35lb
Dimensions 16.0" x 16.6" x 19.7"
Enclosure Type MDF
Product Information
Finishing Black Textured Wood Grain Vinyl
Miscellaneous
Additional Information Line level/LFE RCA jacks

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SKU:
R-121SW
Manufacturer part:
R-121SW
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Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.

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

R-121SW

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