I had written before that I tried my m3 Sapphires without the spikes and just using the footers per your photo. I have a thick carpet with an 8lb carpet pad underneath. The sound is dramatic in a good sense, more of everything the speakers do so well but adding more body and natural detail much like using decoupling footers if you have a wood floor, Isoaccutics for instance. There is a great article on the PS Audio website by Jim Smith famed audio setup man as well as the author of a book on all things audio and how to maximize your system and its sound, he has no love for spiking speakers, and Paul at PS Audio feels the same. Yes, things tighten up but the trade-off is the loss of weight, body, and soul of the music. I spoke to a speaker designer once and he said they have to put spikes on their speakers because that is what people expect, not that he felt it sounded better, but for sales they had to. With no spikes, you may have to adjust toe-in, etc., due to your setup being used with spikes before and how they push the highs forward, midbass lacking, etc. It is cheap to do and worth a tray and it's free! Keep in mind when speakers are built in a production lab they are without any spikes in them just the speaker's el-natural. Some speaker manufacturers will even say for the proper sound of their speakers leave the grills on. Your room of course also has a bigger impact than gear or cables, we are tuning our system to the acoustics of the room, and fixing the room is the best investment you can do than buying gear over and over and speakers as well. Panels 1/2 up your walls, front, and side wall, and behind you if you have a back wall, I am in an open loft on the 2nd floor thus no back wall behind me till the living room wall below so 50' or so away. Some pictures over the years with my different panels. Looking at your photo you have a lot of panels on the floor, I might suggest using 2 of the larger panels and putting them on the front wall on each side of the window, and tilting your blinds upward yet somewhat open which will make for diffusion, or better yet that and some draps, your front wall matters sound is bouncing all around when walls are bare.