Best multi channel amp and processor good for 2 channel listening.

following the latest line of discussion regarding HT for music. The center speaker itself makes significantly more of a difference than any other component in getting voices absolutely correct. One of the primary reasons I selected KEF Reference 5 speakers was the matching 4C center. It's the only center I've heard, and I've auditioned a bunch, that lets voices sound as perfectly normal as the recorded source does.  I find that using a preamp that retains memory for music settings, as opposed to only HT setting, gets me where I want to be whether it is music in stereo or multichannel.   Yes Melody Gardot and Patty Barber are both excellent choices for verifying both imaging ( sometimes they are next to the piano not centered lol) and perfect voicing. I also find that sax and trumpet are very useful (both mono recordings and stereo) since they seem to encompass both mids and highs, a test of both the drivers and the crossovers.I've not found that the amplifiers play as much of a roll as do the speaker(s) followed by the sources once you're at the level of equipment you are at.  

the finger snaps on Patty Barbers version of Ode to Billy Joe is a real differentiator between amps. Those seem incredibly difficult to get just right. I also listen to cymbal strikes and decay as well as the same on piano. Ahmad Jamal's Blue Moon is excellent for this. Bob Wasserman Duets is another go to for voicing and differentiating between amps and sources. 

Jimpitt.

This is good stuff... Love Patricia Barber..

I built a  Frankenstein system that sounds pretty good, but nothing like the dollars you have.   I purchased an NADT777 V3 with paradigm 15b speakers and Dynaudio x18.  I mixed 8 ohm and 4 ohm.  The home theater is pretty good.  Set room with Dirac, but it does lack on 2 channel Zone set up.   This was an interesting read as I wondered the same thing.  
I was still using an NAD 2200 I bought new in the 80s.  Its working in the garage now.

Stttt,

You see what I am saying, it’s just logical to me.  All electronics have there own sound and the only true way of having the best of both worlds is separating the two. The more research I did on this topic it all lead to the same conclusion which lead to a priority change. I learned your two channel is where all is truly taken in and where all the detail is important to be present. Don’t get me wrong a good sounding HT is important to a lot of people but you really don’t have to spend a whole lot to accomplish something that to me will always be lacking. A movie is mostly sound effects and not all sounds or scene of the movie will be brought forward. There is the back ground music but when your involved in everything else, this tends to disappear in the back ground. Anyway this is just a personal observation and conclusion, please don’t chew me out.....