The 900e is equipped with two 3,000 VA transformers and 108,000 ?F. This power source is the backbone for the output of the Evolution 900e. With this foundation, the 900e delivers 900 watts into 8 Ohms, 1,800 watts into 4 Ohms, and 3,600w into 2 ohm. The FTC mandates that power ratings are quoted using a 1,000 Hz sine wave into a fixed 8 Ohm resistor with final power specification stated at 1% distortion. Krell engineering considers this specification too lenient and not indicative of what an amplifier is required to provide. Krell designs to a much stricter standard. Our power tests use a 20-20,000Hz signal into 8, 4, and 2 Ohm loads with our final specifications stated for .1% distortion.