Question Why is there no power button on the M300 / M350 / C300 / C400 XL / G-Sharp

The decision to omit the power button was made on basis of 2 things:
  1. The experience that a unit like this is mostly powered on and off with a rack switch anyway,
  2. It's a way of reducing the production cost of the power section, allowing us to spend more money on more important parts of the unit.