Marantz PM Ki Ruby vs Musical Fidelity M6si

A number of months back I stepped from the Marantz 15S2 series to the Marantz KI Ruby Integrated/CD player.  Unfortunately I have no experience with the MF gear.

I purchased a "pre broken-in" pair and it was immediately apparent they were superior across the board to the 15S2 gear.  The sound stage was more expansive in each direction.  They are more transparent.  More dynamic.  More detailed.  

I have always viewed the Marantz sound as more neutral than warm.  But if it leans in a direction, the gear is always smooth, never offensive.  So yes, maybe a tad warm.

My only disappointment was to find no pre outs on the integrated.  Otherwise, the gear is a long term keeper.  

relative to the above comments, as I stated the 15S2 and the Ruby are two different amps in more ways than one.  

@prashanth 13485, you can look at my system on this site.  I have driven multiple speakers with the Ruby combo with great results.  BTW, the output of the N-core class D amp goes ballistic into low impedances.  So your 4 ohm speakers will have more power than they can handle (in a good way).

Thanks for your kind words.  A dedicated room is a huge plus.  But don't despair.  Great sound can still be achieved in a living room. (An understanding spouse goes a long way in this situation)