Thanks to all of you guys there.
Is possible to put the brands mentioned in the order of their reliability and sound quality.
No. Reliability, maybe, but for that, one would need to be looking at a large sample size, not personal experience. Ideally, one would look at a carefully done survey of products, as, for example, one finds in
Consumer Reports occasionally. Judging from the amount of complaints I have read online (which is not a good way, but is better than just personal experience), Yamaha seems to get very few complaints for reliability. Some of the other brands have had some issues at various times, but for that to be meaningful, we would have to discuss specific product lines, not the brands as a whole. I would not hesitate in buying a Denon or Marantz.
As for sound, if you don't engage any feature not on another product, and if they are used within their design limits (e.g., appropriate impedances, not overdriving the amplifier, etc.), any difference you hear is most likely a result of the placebo effect (i.e., not real). Now, the different features do make a difference, and the design limits of different units are different, so in actual use, you may hear differences that are a result of such things. But I would not concern myself with the ability of any of the major brands to sound good. I would look for the features I wanted, and pay attention to reports of
recent reliability problems.
