Herman, What would you rather have? A system that hardly plays above a whisper at full volume or a system that plays loud at 9 o'clock? To say the requirements for passive and active are equal can be misleading to the unsuspecting Audiogon member reading this forum.
At the end of my last statement I mentioned "and the list goes on". Meaning there are many more factors to consider, including impedances between source, passive and amp.
I don't know if you personally use a passive preamp or not, but let's do an experiment and say you do. Let's take your incredibly high efficiency speaker out of the equation and replace it with a medium to low efficiency speaker leaving everything else the same. Now what do you have?
I understand your confusion and the confusion of other inexperienced audiophiles like yourself that have not had the oppportunity to experience a wide variety of equipment over the years of being involved in this hobby and learning from the ground up so to speak.
This forum is a great place to help one another with an accumulation of experience in a helpful manor without rude or condescending behavior so we all can learn and enjoy this hobby together.
Happy listening.