Klipsch KW-120-THX Ultra 2 12″ Subwoofer

Brand: Klipsch
Model Number: KW-120-THX 2
UPC: 743878021264
Model Number: KW-120-THX 2
UPC: 743878021264





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Klipsch KW-120-THX (M) Ultra 2 Subwoofer

  • Top-of-the-line internal wiring
  • Very high output capability (130dB @ 30Hz)
  • 12″ Cerametallic cast-frame, long-throw driver with 240-ounce magnet structure
  • Front-ported enclosure for maximum installation flexibility
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Product Description

Features & Specifications



Klipsch KW-120-THX (M) Ultra 2 12″ Subwoofer

When designing the Klipsch KW-120-THX subwoofer, Klipsch applied its theater experience to bring the same powerful, deep-driving bass to the comforts of home.The world’s finest theater operators choose Klipsch cinema systems because they deliver the full impact of the most intense action movie soundtracks without sacrificing musical definition.

To achieve intense, deep-bass output in large rooms, this high-performance subwoofer that is part of the THX Ultra2 family features a 12-inch, long-throw Cerametallic driver and front-firing port. It includes a 15-pound motor structure and a 20-foot Monster THX Ultra cable with Neutrik Speakon connectors. The subwoofer is driven by an external 1-kilowatt amplifier (KA-1000-THX) tailored to its characteristics for maximum output and reliability with extremely low distortion.

The subwoofer enclosure has the dado and rabbet construction used in Klipsch professional speakers for structural integrity.

Finished in Galaxy black with an aluminum fascia, the Klipsch KW-120-THX also features top-of-the-line internal wiring to ensure that every roar or explosion is heard with complete clarity.

Construction is to the highest standard, with a professional grade rabbet and dado locked panel cabinet and premium components throughout to ensure sonic purity, consistency, and reliability. Each subwoofer enclosure has a
NL2 SpeakOn™ input for correct, secure amplifier connections, and each KW-120-THX is supplied with a 20-foot THX Ultra certified speaker cable terminated with NL2 Speak On connectors.

The Klipsch KW-120-THX is a compact, high-output, low-distortion passive subwoofer suitable for use in any high-performance home-theater or music system. A pair of KW-120-THXs driven by a KA-1000-THX amplifier meet all requirements for THX Ultra2 certification. Although a single Klipsch KW-120-THX does not satisfy the stringent THX Ultra2 maximum output specification, which assumes a very large room, it is more than adequate for a typical small or medium-sized room. Either configuration is capable of intense, powerful deep-bass reproduction, with no loss of clarity or detail at even the highest levels demanded by modern action-movie soundtracks. The
cabinet is front-ported to maximize installation flexibility.

Klipsch US (KGA) Model# THX-1200-SW

Product: Klipsch KW-120-THX Ultra 2 12" Subwoofer
Weight 36 kg
Dimensions 450.85 × 450.85 × 514.35 mm
General Specifications

– Frequency Response – 20-200Hz ±3dB
– Max. Acoustic Input – 130dB @ 30Hz, 122dB @ 20Hz, 112dB @ 15Hz 1/8 space, 1M (2 enclosures side-by-side per THX Ultra2)
– Nominal Impedance – 8 ohms
– Enclosure Type – Bass-reflex via front-firing slot port
– Amplifier – Use only with KA-1000-THX
– Amplifier Power – See KA-1000-THX specifications
– Woofer – 12" (30.5cm) front firing, Cerametallic™ cone,
– Cast aluminum frame driver with a 240oz
– Ceramic magnet structure
– Enclosure Material – Medium density fiberboard construction(MDF)

Home Subwoofer RMS

1000W – 1999W

Home Subwoofer Size




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Klipsch offers a limited 2 year on electronics and 5 years on woofer – Subwoofer Warranty


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