Marantz PM Ki Ruby vs Musical Fidelity M6si

@nonoise thank you so much. This is very useful and I’m glad to know that you’re enjoying your gear. It always feel great when you return to a piece of gear after sometime and it sounds surprisingly better.  Stay safe. Cheers!

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).

@corelli.. thanks again. Just checked out your photos. What a beautiful listening room you got. 
Wish I had a dedicated room. Mine’s a living room setup so you can imagine the whole host of acoustic problems I am having to deal with. Next up, I want to do some basic treatment but I have to make sure that my boss (wifey) is happy with the decor.  Lol

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)

Ruby owner here (integrated first, followed by SACD player): I’ve been extremely pleased with both pieces, but especially the amp, as I’ve shared in other posts here & on Hoffman’s board.

I did not audition the MF; I’m sure it’s a fine unit.

To summarize, I find the Marantz open, fast, non-fatiguing, with a very good phono section & headphone amp. A little while back I switched in an old iron lung power cord (and a new Amazon sourced hospital grade $15 power cord); I continue to shake my head as to just how good this thing sounds. Believe I’m in for the long-haul with this one, I can squander my $$ on other things now...

Looking at both Rubies together as a system, the convenience of a common remote to control the amp & silver disc spinner has grown on me and girlfriend; she’s comfortable using and enjoys listening to the system. (Think long-term, big picture here..) I can use the DAC in the SACD with a streamer. Food for thought, esp with the prices on the amp coming down.

Hope this helps, feel free to pm me with any questions.