Remarkably better sound possible with just 1 system component change?


I could have posted this discussion to a few other categories but chose this one because discussions related to 2 of the 4 components in question belong here.

So it's been ~2.5 yrs since I purchased my current system. I did a lot of research at the time here on audiogon, but no auditioning, and put together a system that sounds very, very good to me.

While I have no complaints, the itch to upgrade has surfaced recently.

I am curious as to whether you guys think it will be possible for me to replace just 1 of my primary 4 components and obtain significantly better sound as a result. The more discernible and obvious the sound improvement, the better obviously. I am not looking for a marginal upgrade - I want dramatically better sound. And I am not looking to replace more than 1 component at this time. I am hoping to get a few ideas/candidates and then may decide to audition some of the recommendations before making a decision. Hopefully some of the upgrade paths are such no-brainers that I may even be able to take a leap of faith without auditioning. Note also that acoustic room treatments are not viable in my current listening location.
 
My current 4 part system:

1. Lumin D2 - 100% of my listening is streaming via Tidal
2. Mcintosh C2600 preamp
3. Mcintosh MC452 amp
4. Focal Kanta 2 speakers

Cables are Cardas Golden presence RCAs from the Lumin to C2600, Cardas Clear Cygnus XLRs from the C2600 to the MC452, and Kimber 8TC speaker cables to the Kantas.

Soundstaging, dynamics, imaging and overall clarity are all great. I have to say I love the Be tweeters. And the bass is punchy, tight, fast and certainly sufficient for my needs. Vocals and overall sound are warm, liquid smooth and analog-like, just the way I like it. (Forgive me if I've botched some of the characterizations - I'm no expert at this). The only thing I can think of that could use some improvement is the sound quality at lower volume levels, although that is not terribly important to me since most of my listening is in the 90+ Db range. Would be nice, though.

So while I do love the overall sound, surely dramatically better sound can be obtained via a 1 component swap? Budget is ~10k. Or will I need to spend more, or upgrade more than 1 component to achieve the desired result?

Thanks in advance for your time and thoughts.

chandybe
1st, your room is the " busiest " room I have ever seen, and I have seen / been in / listened in, all kinds of rooms. Given you are restricted / preferred to combining 2 channel with home theater in one room, and you are pretty much enjoying what you have, you need to ask yourself........What specifically, am I looking to improve ? Do I want more detail ? More dynamics ? Greater bass output and extension ? Greater ability to connect more with the musicians ( bingo, this is the most important )? Getting opinions by anyone, will not get you anywhere, as it is all up to you, and your wants and needs are very different than everyone else's. Most people are on a roller coaster, trying to find their " holy grail " of sound. I will tell you this. Once you realize that the recordings we listen to ( except for a handful ) are our weakest link in most of our listening, you will understand a very important lesson ( fact ), that " it " will never sound live. Purchase the cds or downloads of Tony Minasian ( of Tonian Labs ), and you will see how FANTASTIC your system really is. Enjoy and be well !
That room is a critical mess and indicates that the priority of the OP is sports and not music.  Let’s be realistic here....decide which is a priority and then move forward!  If it’s a good time, celebratory environment then go big on dynamics like I said earlier.  Don’t pretend to be an audiophile while stacking soccer balls between your speakers and equipment stand.  
I agree with the statement  Room correction with room treatment are the biggest dramatic changes you can make.   My former room was twice as big (25X20X11.5) but my new room is professionally constructed by an acoustical engineer (19.5X16X10 net area, gross is 16" wider/longer on all walls, 12"-15" 3000 lb psi steel reinforced floor).   The difference is 100% improvement in sound.   Millercarbon is not a fool.  I don't know if Hemholz resonators will work but vibration control devices can make HUGE improvements, second only to acoustics.   His choice of Townsend products is a wise one.  I have a mix of Townsend, Stillpoints and Synergistic Research.  All equipment varies per product/line but Townsend products have proven to work for me wherever I put them.