Wall treatments “Asymmetrical”?

Some photos of your system and venue would be really helpful. There is a place under your user ID to create virtual systems.

In general, the biggest challenge will likely be right and left. If there is a lot of space on the right and a close wall on the left… then treatments on the left can equalize the open space on the right.

But I definitely agree… take your time. You can simulate treatments with thick blankets and pillows to shape your sound space before investing in expensive treatments.

@sleeeepguy 

Forget blankets and pillows, if you can afford the Sabrina X, no reason not to experiment with a variety of acoustic treatments. Best way to start is give your room layout to Gik Acoustic and they will give you suggestions for free. Go from there. In my case I ended up with more diffusion than they suggested. They over did it a bit on absorption. Glad to hear you want to pay attention to room acoustics, you can see my setup in my system. It really pays off!

"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.