Wall treatments “Asymmetrical”?

"Sound Reproduction" by Floyd E Toole on Amazon for $23 in paperback. It will be the best $23 you ever spend. It should be mandatory reading for all audiophiles, especially those who are dealing with speaker set up. Too much of the stuff you will read here is either uninformed or presented to stimulate commerce.

@newbee , +1,  I think a lot of it leans towards "commerce stimulation", i.e., the dealers and the appointed pied pipers for certain product and so on ( I doubt some of these guys are all that genuinely uninformed). 

"Just got", as in 2 weeks, 2 days, 2 hours ago?

I ask because if your Sabrina’s sound really good and are only days or even a couple of weeks in, perhaps enjoy them "as is" for a while and maybe just play with positioning/toe in?

Take some time to figure out what may or may not need improving?

As an aside, I was considering Sabrina X and ended up with Harbeth 40.3 XD, and screwed around with speaker position and isolation for weeks, and eventually figured out I had the wrong amp. Expensive mistake. Happy camper now though.

The basic acoustical character of the room is set by its dimensions. It is modified by finishes, furnishings, openings, and such. You also need to consider your floors and ceilings. Treating only the walls may help some, but it's a partial solution at best.

The good news is that it doesn't take that much to make a huge improvement. Most rooms can be done for under $1000 using a kit from someone like Acoustimac. I've used them both in my theater and living room. They use top-qualty nam brand core and cover materials and construction, offer a full palette of colors and textures, and ship quickly. 

@ghdprentice You can simulate treatments with thick blankets and pillows to shape your sound space before investing in expensive treatments.

Good point.  Why waste money?

Get to know the speakers right out of the box. Play with placement for a while. What do you think you are missing? weak bass? harsh treble?, lack of focus?, lack of soundstage? etc.?

I would be inclined to bet that very few audiophiles have a perfectly symmetrical room. My experience is that I never end up with both speakers exactly the same distance, toe-in, etc., from the listening position.

I remember my time with Thiel CS5i's. They lacked a bit of bass and hard to get good soundstage. First step was adding bass traps at ceiling corner of front and side walls. Then more bass traps in corner between front and side walls that were at the height of the speakers.

You get the bass right, the foundation is there for the rest of the sound spectrum, in my opinion.

YMMV.

Great feedback from everyone and I appreciate it.

I ordered the Floyd E Toole Book Sound Reproduction and will start it when it arrives.  I watched the noted YT video and there is so much info I will have to rewatch a few times to fully understand.

I have about 200 hours on my Sabrina's but need to dial in the room. GHDprentice, I like the idea of using pillows and blankets to simulate what expensive panels may do. I will start by moving my sub around as well to see the impact that has. I need to get the bass right as was mentioned to build from that foundation.  

I will post system this weekend in the virtual system area that was mentioned

Thank you all.