The 402e is equipped with two 2,200 VA transformers and 188,000 micro F of capacitance. This power source is the backbone for the output of the Evolution 402e. With this foundation, the 402e delivers 400 watts into 8 Ohms, 800 watts into 4 Ohms, and 1,600 watts into 2 Ohms with all both channels driven simultaneously. 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 20-20,000 Hz signal into 8, 4, and 2 Ohm loads. Our power tests use a 20-20,000 Hz signal into 8, 4, and 2 Ohm loads with our final specifications stated for .1% distortion.