Originally Posted by Tablix
Tell me how a 40-50mm driver can accurately present the complete frequency range as clearly and accurately as 2 or that are larger in size and playing different ends of the audible spectrum.
I asked you to explain your claim that "A single driver in a headphone will never come close to matching an average set of monitor, THAT is physics." Instead, you have merely restated your claim without explaining the physics of what you say, but also you have changed the claim, narrowing it to make clarity AND accuracy the requirement. That may be your measure of what is better, but it is not everyones.
However, there are planar magnetic headphones and dual armature IEMs that have been measured to have extremely neutral responses with a lot of clarity, even more so than what one would get out of speakers close to the same price range.
Why do studio's use speakers for monitoring? You have over 3000 posts in 18months, and offer advice on any number of subject but don't realise the ONLY issue speakers have over headphones is noise reflection. A well treated listening room with well placed speakers will offer you a sound that no headphone can, from my perspective.
The argument over whether or not headphones vs speakers are different/same/better for audio production use is not the same as when they are used for personal listening. Audio production has specific requirements of speakers that can be different from what an individual user may have with their listening tastes. Note that the topic of this thread does not seem to be focused on pro audio use.
How many posts someone has on this forum is irrelevant to whether or not their point is valid. That being said, MOST people on this forum will not be listening to their speakers in a treated room.
You may want to ask more qualified people their opinions and I would suggest asking here http://homerecording.com/bbs/
where you will find plenty of qualified engineers and studio owners.
I would suggest that you might want to hang out some on some non-pro audio forums so that you learn that pro audio use/preferences does not necessarily equal personal use/listening.