My mistake, may be I did not explain myself well enough

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When I said extended high frequency is very important for Hindustani, I did not mean it is more important than mids or lows. All I wanted to say is, for this genre of music high frequency extension becomes very important as there is a lot of upper octave information and their harmonics which if not reproduced well just doesnt do justice to this kind of music and robs it off the realism that was otherwise possible.
I am not an expert in raagas like Asit but when I hear a Sitar, Sarangi, Shehnai or even a Tabla, there is so much decay and air around them which is impossible to achieve if the highs are rolled off. It just doesnt sound as real.
And please do not relate high frequency extension to distortion (some people call it tizzy, zingy etc). Extension means clean extension and when that happens you hear a much more resolved and true HF, it can even sound sweet...no sense of fatigue at all.
I had mentioned in my earlier post that it would come as a surprise to many as why this genre is difficult to reproduce and Gobble your post illustrates that and if you do not take it as an offence and just as a friendly suggestion, your post also illustrates that you have not yet experienced Hindustani music on a "proper" setup. When I say proper, I dont mean expensive setup but an "appropriate" setup.
Someone has already mentioned how a Cadence Electrostat does it even though its laidback in nature. I have recommended the Quads because I have listened to them with various kind of music, while they suck while playing Rock/Pop stuff...they excel while playing Jazz, Indian Classical, Blues and other Acoustic music.
Epos are better all rounders but they dont excel in any genre.
As for amplifiers, at this budget one would not gain much by spending additional 15k for a NAD over a Norge (which is a very nice amp at the entry level) especially considering that a lower end speaker is not going to cut it.
Moreover it is easy to sell off the amp later and go for a real nice amp which the speakers will do justice to and vice versa.