Thank you everyone. Finally I got my Marantz PM 6006 yesterday. I am noting down my experience here for the benefit of others.
Due to Covid 19 situation my chances of auditioning before purchase was very much limited. So I mainly trusted reviews and youtube clippings and the samples provided by the forum member
@apbinu etc. Since my existing amp was a very basic one, I somehow wanted to know the feel of the hifi brand. So I was almost sold on to Marantz for that reason. I visited the showroom and saw their setup. It was connected to Marantz CD player and running a FS speaker. The sales team played a very high quality audio CD and it was a mind blowing experience. He was happy to switch multiple speakers (all were FS) and it was sounding really good on all speaker sets. He changed the loudness and direct mode etc again it was really good . Now I asked him to run a normal MP3 (CD) file just for my curiosity in the same setup. The experience changed drastically, it sounded very normal. In fact very much similar to my 4000 Rs amplifier. so I was almost sure on the spot that I need to find a better source for my songs otherwise this investment is not going to make any sense. Since my thought process(read it as an itch to buy a hifi brand in a life time) was to buy it, I went ahead and purchased it. I got it and connected to my laptop that runs spotify (free) and to my Wharfadale 9.1. It was much better than my previous set up. I was able to hear all the instruments very clearly. am I happy? of course yes . But is it really worth the investment ? probably not . The reason, it is definitely a good amp but a lot depends on the source from which you play and your speakers too. If you have high quality audio sources then probably it is worth looking into Marantz for music . PM 6006 alone is not going to make great wonders just because it is in the equation. But definitely expect positive impact in the sound clarity. Now I have connected the Laptop directly to the PM6006 via the 3.5mm jack. probably I shall try to find a way connect to the DAC of PM 6006 and might find a difference in SQ. The dealer was very open in mentioning that a DAC is must need in the equation otherwise I will be getting only half of the benefits of this amp. He was suggesting to connect it to DVD / CD player which has USB audio jack and see if I can stream from my mobile to it. And then connect it to the amp. I had similar setup before , ie DVD player's out is connected to the AMP and the mp3s are played from the DVD player. There was a great difference in SQ when it was played from a DVD player and a PC. The DVD player was sounding much better. So I guess If I can find a way to utilize the DAC of the PM6006 from the laptop the experience might change(the other option would be to somehow stream from laptop to DVD player and then AMP).
So if anyone (with similar setup, usage, budget, audio source) is looking for an amp then my suggestion would be to look at Norge first. Please make all efforts to listen and if you find it an absolute no go then probably look into other options. This can vary a lot especially , if you have a high quality audio source already / you didnt like the sound signature of Norge etc.
Thanks again all the valuable forum members who were kind enough to provide your valuable suggestions. Much appreciated.
I would like to hear the comments of the FMs those who have gone through the similar process of connecting Laptop (3.5mm jack)directly to the AMP and if they find an alternative approach to improve the SQ.
Kindly note, PM6006 is NOT a bad choice at all, infact it is a great amp. My intend was to state that its performance is purely based on the setup and there are VFM options like Norge available which can give very similar results! .