ama732mx1, It makes a difference that you are dealing with a living room where you do not have complete freedom due to a concern for aesthetics. Typically one also has limited flexibility in speaker and listening position in a living room.
I have miserable acoustics in my living room, where having traps and panels all over the place is a non starter. I went with a different approach in my Living Room. There I used a Synergistic Research Black Box and about twenty SR HFTs. I was skeptical about both of these products, but I found them surprisingly effective in improving vocal articulation which was a real problem in that room. It was so bad it was hard to have a conversation much less enjoy music. Even my wife, who is a complete non-believer in such things, was really impressed by the difference. However, I evaluated them upstairs in my dedicated living room, and the SR products did absolutely nothing there. So, if you try the SR products, make sure you have a 30 day return option.
Finally, I picked up a Lyngdorf 2170 for use in the living room, which offers some very effective DSP using Room Perfect. It is a really nice piece. Not what I would have expected from a class D amp at all.
There is more than one way to approach this. In a dedicated room, I'd go traditional room treatment. In a living room, I'd start with DSP and go from there in order to avoid or minimize panels and traps.