How to choose speakers that won't overpower your room?

Well, this round of speaker wars is complete, with the winner being the QLN 3's. You can see my thoughts on these with a new piggyback post here.

I posted some new comments in the Raidho thread that that I started.

All of the speakers I tried were excellent, and none of them overpowered my room, though I think the Raidho's could fill a much larger space. The QLN's are just a sensational speaker that suit me best right now. 

I still have my eyes open, and would like to try some Sonus Faber options at some point, but for now enjoying the Swedish wonders.

Thanks for all the comments along the way, all very helpful. 

I forgot to comment that I did recently add my REL 7i into the mix, but even though it blended well, the quality of the bass seemed sub-par to that of the KEF's. Does that make sense? I pulled it back out.

Sorry for disappearing, busy weekend. Thanks for all of the suggestions. I recently ran REW on my room, and room treatments are in order, maybe I should start there.

I am not at all unhappy with my KEF's, but always thinking I can go up a notch or two in the quality of the sound and smaller floor standers seem like the best option.

I am sure I will get more ideas this coming weekend. 

Thanks for the additional comments, I will be pursuing some room treatments. @sawbuck I built a custom Pi/Digi streamer a few years back with good success. I nigh have put it back in to see how it compares to the Innuos. 

@hbarrel and others. Well the plot is getting quite thick, and I hope the mystery is solved soon. Regarding my original thoughts on Sonus Faber, they were demoing their Stradivari signature speakers with Audio Research mono's at AXPONA, quite the system. I sat front row next to JVS himself for that demo. Other than hearing a great system, it was not a lot of help for me as the scale of the system was just not relevant to my situation.

A few other speaker manufacturers caught my ear. The QLN/Merason/Rossi room was great once again, and was my runner up choice for favorite. I visited the Margules room where they were demoing their amplification and speakers, this was honestly my favorite room at the show. Liquid, beautiful sound. And then, in the adjoining room, Raidho was playing a set of TD-2.2's, also using Margules amplification. I am a soundstage freak, and their system really delivered. 

It so happens I ran across a very good deal on a set of Raidho D-2.1's, the predecessor to the TD-2.2's, and a couple weeks later they were in my room. They were quite reserved out of the gate, but after a couple weeks they started to open up. Strange for a used speaker, but it almost seemed like I was breaking them in again. In the past week I have started getting serious about fine tuning placement, and I would call them quite amazing and honestly well suited to my room size sound-wise, thought just a hair on the big side but I could live with them. 

But wait! That's not all! I came across a set of QLN 3's for sale regionally, and I figured I would forever wonder if I did not give them a try. I am picking them up this weekend, and the Raidho vs. QLN cage match will begin. The Raidho's will be hard to beat, but the reviews for the QLN 3's are pretty gushy.

I will post an update when I know more.