What to add or change for my system?


This is my first post, so please have pity on me if I break any rules.... :)

I immersed myself in this hobby a few years ago, and I'm completely hooked.  And best of all, my wife is.....almost hooked.  I initially purchased speakers from Axiom, OPPO 103D from OPPO, and Parasound preamp and amp from a local dealer.  These were connected with Kimber Timbre cables.  I also have a Furman Elite power conditioner.

All of that changed in December.  My system now consists of:
  • Martin Logan Summit X speakers; purcahsed new on AG
  • Plinius Hautonga integrated amp; purcahsed on AG
  • Oppo 105 that has been modded by Tweak Audio for even better audio; purchased on AG
  • Bryston BDP-1; purcahsed on AG
  • Gustard X20 DAC that has been modded by Tweak Audio; purcahsed on AG
  • Gustard U12 USB interface; purchsed new on Amazon
  • Clear Day silver speaker cables; direct from Paul, a wonderful person!
  • Avanti Audio interconnects; direct from Avanti
  • Furman Elite power conditioner; Audioadvisor

As luck would have it, I just got a nice bonus and feel the itch to add to, or make better my system.  Not knowing what to consider, I'm hopeful to get some suggestions from you.  If this was your system, and you had $3-4 thousand to spend, what you add or replace?

Thanks for your thoughts!!!
smills59
smills59, I agree with many others here that the room has the greatest and most underappreciated effect on the sound you get from your system.  That said, many of us don't have a dedicated room so room decor (otherwise known as WAF!) plays a part too.  It sounds like you are blessed with a tolerant wife (I am too - up to a point) so you are lucky.  Search the forums for some low cost/free things you can do in your room (wall hangings, area rugs, plants, etc.) and experiment before spend big bucks on room treatments.
Agree with the others. If you feel satisfied at this time, enjoy it. One important thing to attend to if you haven't already is a good rack to put everything on. It does make a difference. I recommend Adona for sonics and adjustability.
Even more great suggestions!

I do have vibration pods for every component.  Also have Pangea power cords for every component going to the Furman, and a massive cord from the Furman to the audio receptacles.  I don't have a dedicated line from breaker box to wall, but that isn't really possible in my case.

I made cable risers from Styrofoam squares that I painted black and put a felt pad on the bottom to protect the wood floor.  Cables rest on top.

The room is not dedicated to audio, it's our living room.  It's 15x16 with one of the 15 foot sides open to our dinning room, other side is a fireplace.  Ceiling is 8 feet, sloping both sides to 12 feet in center. Speakers are 8 feet apart, 3.5 feet from the front wall, and 4 feet from the side walls.  It's a pretty big room.

I do have a decent music collection all on hard disk, and I listen to Tidal a lot.

I like the idea of room treatment.  Because the MLs are dipole, would a 2x4 absorption panel directly behind the speakers work best?

Thanks guys!!!