Hi,
For people interested in the silver series of MA, the RS6 is a very good speaker, from all reports, including actual users. Our forum member "particleman" uses the RS6 with Arcam FMJ A28 amp (at around 70-75K), and according to him and dinyaar, the results are fantastic. Arcam amps are very clean sounding and sobre and they go very well with the lively RS6. Currently particleman has further upgraded his source to the Arcam FMJ CD37 and is not posting anymore here, perhaps very busy listening

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BTW, my guess is that the Arcam FMJ A18 amp (their cheapest at approx Rs 45-50K) also should go well with the MA silver series.
On the Denons, yes, some 20 years ago they used to produce excellent 2-channel electronics. Over the years, their focus has shifted somewhat to the home theatre market, but more expensive items should still be good. I have heard that their current 1500 (costing RS 55K) and 2000 (Rs 1.2 L) amps are quite good. But obviously at that price point, there would be other good options, so one has to audition different available amps and see what one likes.