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Klipsch KW-120 THX Ultra 2 Subwoofer 12-inch, long-throw Cerametallic  driver
Klipsch KW120 THX Ultra2 12" Passive Subwoofer

Klipsch KW-120 THX Ultra 2 Subwoofer 12-inch, long-throw Cerametallic driver

Part Number: KW120THX Review(s) (0) Write a Review
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Klipsch KW-120 THX Ultra 2 Subwoofer 12-inch, long-throw Cerametallic driver

Professional-grade THX Home Theater Sound

How sturdy is your home's foundation? Well you'd better check it twice before you fire up this dynamic duo. That's because Klipsch designed the KW-120-THX subwoofer and matching KA-1000-THX amplifier (sold separately) to deliver intense levels of movie theater bass that'll rattle your floorboards. This two-piece Klipsch system has more than enough output to rock most rooms. But if your home theater is extra-large, the amp is ready to power a second KW-120-THX sub. A pair of these beasts will satisfy your cravings for even more bass, and meet the stringent requirements for THX Ultra2 certification.


Meet the new boss

The KW-120-THX subwoofer is 80 pounds of pure, unadulterated bass thunder. Built around a 12" cast-frame, long-throw driver with a massive 15-pound magnet structure, this sub can deliver staggering output without breakup or distortion.Klipsch's ultra-light yet rigid Cerametalic woofer cone material helps keep the bass tight and accurate. The sub also features a professional-grade NL2 SpeakOn input for a secure amplifier connection, and includes a 20-foot THX Ultra certified speaker cable with NL2 SpeakOn connectors.

To ensure years of top-notch performance, Klipsch builds their THX certified speakers to the highest standards. The sub's front-ported enclosure features the same interlocking panel construction found in their professional speakers for maximum structural integrity and strength. Premium-quality internal wiring is used for superior signal transfer and clarity. And Klipsch finishes off the KW-120-THX with a beautiful and durable fascia of black brushed aluminum.

Clean power for smooth bass

The subwoofer recommended to be powered with Klipsch's custom-matched KA-1000-THX amplifier (sold separately). This full-featured Class D amp provides 500 watts of clean power for high-impact, low-distortion bass and is capable of delivering 1000 watts into a 4 ohm load for driving two high-performance subs. It also includes a built-in, defeatable low-pass crossover and level control, boundary-gain compensation switch, continuously variable phase control, and an auto power function for exceptional flexibility. Finished in black with a machined aluminum front panel and knobs, the amp's standard chassis width and handsome appearance allow it to fit in easily with your other components. Or you can hide it away in a cabinet to reduce clutter.

Product Highlights:

KW-120-THX passive subwoofer:
  • frequency response 20-200 Hz (±3dB)
  • 12" long-throw Ceremetalic woofer with cast aluminum frame and massive 240 oz. magnet structure
  • bass-reflex cabinet with front-firing slot port
  • Galaxy Black finish with black anodized aluminum fascia
  • impedance: 8 ohms
  • NL2 SpeakOn inputs for secure amplifier connection
  • 20 foot THX Ultra certified speaker cable with NL2 SpeakOn connectors included
  • dimensions: 17-3/4"W x 20-1/4"H x 17-3/4"D (with grille attached)
  • weight: 80 lbs.
  • warranty: 5 years
KA-1000-THX amplifier (sold separately):
  • 500 watts (mono) RMS into 8 ohms (1000 watts into 4 ohms when driving two subwoofers)
  • can support two high performance KW-120-THX subs for full THX Ultra2 certified sound
  • frequency response 20-1,000 Hz (+0/-3 dB)
  • high-efficiency Class D amplifier with massive toroidal power supply transformer
  • continuously variable 40-120 Hz low-pass crossover
  • 2 gold-plated RCA line-level/LFE inputs
  • 2 gold-plated RCA line-level outputs (pass through)
  • THX on/off and boundary gain compensation on/off switches
  • adjustable phase control from 0 to 180 degrees
  • signal-sensing auto on/off mode
  • two professional-style SpeakOn NL2 speaker outputs
  • machined black aluminum face plate and knobs
  • detachable AC power cord
  • 17-1/2"W x 4-3/4"H x 12-1/4"D
  • weight: 27 lbs.
  • warranty: 2 years

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