There is something that interests me about your experience with the Micro power supply, and that is regarding its power without a fan. These power supplies in general seem to have different power rating depending on whether a fan is attached or not.
You are hearing better or more defined bass with the micro power supply if I have read correctly.
The Mornsun / Meanwell smps have drops in amps especially when used without fans. I am wondering if this is a factor?
Perhaps this is something the German lab might establish also.
Many people on this forum seem to be assuming power ratings with the fan, but the implementations are without fan.
What do you think?
I can't help help but wonder if you aren't looking at this the wrong way. You state that the Mornsun et al. drop in power output when used without fans, but imply that the Micro audio does not, so you ask if this could possibly result in perceived audible effect as stated.
The Micro audio will derate its output as well, just as any other power supply. The difference is Micro audio does not publish detailed specifications and measurements as is the industry standard, despite several requests on these forums for them to do so.
We know exactly how much power a Mornsun will put out, at what temperatures, what air volume is needed to maintain a higher stable output etc. We have no idea what the Micro Audio will put out beyond a peak power output of 600 watts.
this is in addition to supposed sonic improvements from using the Micro Audio ostensibly owing to it's unregulated output or supposedly greater output power and such...
So if I use 55 watts at a given point, the 700 watt max output supply will sound better than the 500 watt supply?
this takes nothing away from efforts to actually measure the Micro audio setup so as to verify if the perceived differences are real. This is after all audio SCIENCE review and thank goodness for that