PC Perspective posted a review on Cooler Master's latest high-end power supply can deliver up to 1,250W quietly and efficiently A quote from the article:

Cooler Master has done an excellent job of bringing to market one of the best high output power supplies available today. The Real Power Pro 1,250W power supply's voltage regulation, line regulation and cross-loading regulation are all very good. The overall efficiency is excellent and AC ripple noise suppression is good, especially on the +12V outputs. Under normal operating conditions (below 600W load) the Real Power Pro 1,250W is very quiet.

Cooler Master Real Power Pro 1,250W Power Supply Review