In search for speakers of "natural" sound

I am using a pair of Harbeth speakers. However, I am not satisfied with the 'naturalness' of the sound (it could be that I am so demanding). I am looking for a pair of speakers that can produce the more natural and organic sound than Harbeth if there is any.

I know that it depends on the amp, cables, and other variables. However, let's assume that with the appropriate gears, which speakers do you think can produce the "most natural sound"? By "natural", I mean the sound that we hear directly from musical instruments, from the singer without going through any amplification.

There is a user mentioning that speakers from the past used that 'natural sound' as a reference when designed speakers. In contrast, the sound today (even the hi-end one) is to "hi-fi". He guessed it could be less people have chance to listen to live / acoustic music than before.  

Is it right?

Thank you for your experience and recommendation!

P.S: I know that my questions are silly and dumb, please bear with me.

Ag insider logo xs@2xquanghuy147
Reference 3a, incredibly coherent, natural sounding speakers. No crossover, great mid-range.
Audio Note AN/E, in my experience are the most effortlessly natural sounding speakers, but you need to pair them with a SET amp and ideally an all AN system.
ATC is a studio monitor builder first. Their consumer versions are dressed up studio monitors. They want a "natural" sound in the studio, so it stands to reason that the consumer versions will all sound "natural"
I second @inna’s post, digital does not sound "natural". Listen to the same song on a quality record, played on a quality turntable with a quality cart and you’ll hear "natural".
Did you read Arthur Salvatore's review of his reference speakers "Pure Reference" from Coincident? To my ears these are among the most natural sounding speakers I have ever heard.