The KA-1000-THX subwoofer amplifier is the powerful driving force behind the new Klipsch THX® Ultra2 system. This model offers rock-solid dependability under the most demanding conditions and allows listeners to experience all the power, detail and emotion of their favorite music and movies.
Delivers 1000-watts into a 4 ohm load
Can support two high performance subwoofers
Finished in black with a machined aluminum front panel and knobs

This full-featured Class D amplifier, which can be conveniently located near the rest of the installation's electronics, has a built-in, defeatable, low-pass crossover and level control, boundary-gain compensation switch, completely variable phase control, and an auto power function. This high-performance amplifier has a massive toroidal power supply that is capable of delivering 1000-watts into a 4 ohm load. It can also support two high performance subwoofers and has a left and right RCA pass-through.

Finished in black with a machined aluminum front panel and knobs, the KA-1000-THX uses professional style NL2 Speakon® outputs for the high current transfer of power to the subwoofer.

The KA-1000-THX delivers a combination of flexibility, reliability and sound quality that is unmatched.

SpecificationsFREQUENCY RESPONSE 20Hz-1kHz +0/-3dB 
POWER HANDLING FTC Rated Power: 500W into 8 ohms, 1000W into 4 ohms, 20Hz-1kHz @ <1.5% THD / Dynamic Power*: 2050W into 8 ohms, 3025W into 4 ohms @ 5% THD / *Dynamic power indicates the actual power this amplifier w
LOW PASS CROSSOVER Continuously variable from 40-120Hz, 24dB/octave slope above 120Hz (non-THX mode)
AMPLIFIER High-Efficiency Class D
PHASE Continuously variable from 0 to 180 degrees 
ENCLOSURE TYPE Use only with KW-120-THX subwoofer enclosures (either one or two)
INPUTS 2 Gold-plated RCA phono jacks
OUTPUTS 2 Gold-plated RCA phono jacks (unfiltered) / 2 Speakon(r) NL2 jacks
AUTO POWER ON 2 second ON delay, 15 minute OFF delay 
DIMENSIONS 4.75" (12.1cm) H x 17.5" (44.5cm) W x 12.25" (31.1cm) D
WEIGHT 27 lbs. (12.3kg)
FEATURES THX On/Off, Boundary Gain Compensation On/Off
FINISHES Black anodized aluminum
VOLTAGE 110/120 VAC 60Hz
EXPORT VOLTAGE 230 VAC 50/60Hz 
BUILT FROM 2004