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. 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.