Neutral or Detailed. You can't have both

Michael is right - natural. Real live sound is both natural and detailed.
To hell with tremble to begin with, midrange is what should be done right, though Michael might say that this is wrong too - everything should be done right at the same time as a coherent whole, you don't do it in pieces. Yep, if you can.

I would add that acoustic instruments are not created equal either. I haven't heard Amati or Stradivarius but I have heard great guitar and piano, I also heard terrible ones. Do you want to accurately reproduce the sound of a terrible instrument or you want to deviate from neutrality in this sense and try to 'improve' it ? Sometimes instruments are also slightly out of tune. Anything to do about it or leave it alone ?

Neutral and detailed comes together,when you have  both: a neutral amplifier ( like Esoteric f- 03, f-05, datzeel, d’agostino.....) and a good (neutral) pair of speakers ( Audio Monitor PL., Ilumnia Magister,....)If you listen ,to a bad recording,it sounds bad. A good one ,good. Neutral means:”how the sound really is, each instrument on the right place,neutral means also holographic and to the point. If it is neutral, means :it’s also detailed. For me, a lot of speakers like  B&W ,Y.G. ..are not neutral. They overflow the music. There is no right sinergy, between  ,high mid, and low. If you put a bad recording on it,it sounds stil good: this isn’t neutral ,let alone detailed sound. Why? :the Instruments do not sound the way they really should sound. I have now 6000 cd’s,my player is a Luxman sacd-D-06. He is very neutral. From the 6000,they are maybe 1000 that sounds very good. Many others too sharp or deep, and a large number not to hear. In high-end ,both ( neutral and detailed) come together.

It’s like a photo of you. If you take this with a normal camera, you  Will look good, no Winklers....you take one with a sophisticated one, you see all the details: wrinkles,how you really look,you look older ( not as you really want)...that’s the same with music. Enjoy it!!!

There seems to be two definitions of “neutrality” here. Some are saying it’s timber and coloration and others say it’s frequency spectrum, i.e. flat or tilted up lower treble, etc... 
I always though it was freq related and timber/coloration would fall under “natural” or lack there of. 
Cant the “natural” sounding tone, timbre or possible coloration of an reproduced instrument be separate from the even/flat or tilted freq spectrum? 
‘I’ve heard speakers that seem to have a good balanced freq response (neutral), but had a coloration, meaning the instruments did not sound as ‘natural’ to me. 
Am I mistaken?