Looking for more detail in a speaker


Kind of a long first post but needed the space to set up my situation. 
I decided to do something about my speaker situation after demoing a pair of B&W 805d’s. One of the tracks played was Sympathy for the Devil. At the beginning of the song, a percussion instrument, either a guiro or cabasa, just popped out at me on the left speaker. I’ve heard that song a million times but never noticed that percussion instrument coming at me like that. I came home and played the track through my system, through my streamer and turntable. My speakers are Golden Ear Triton One’s. That same presentation just isn’t there like with those 805’s.
The GET1’s are certainly decent speakers; are they not designed for this type of detailed presentation? Is it my room? My listening room is a odd shaped man attic with a 3.5’ wall on one side with an 8’ wall on the other side peaking a 9’ in the middle. My listening position is about 17’ from the speakers.  I’m sure the room is acoustically challenged. Also, I have a long speaker wire run, like 40’. Does that contribute to the lack of detail? I figured out a way to trim about 15’ of speaker wire length from each run and plan to do that ASAP. I’m using AudioQuest construction rated wire. I believe they’re 14 gauge.
So, why not buy the 805’s? I’ve thought seriously about them but concerned they’ll be kind of small for my room. Seems like I need floor standers. I’d like to keep any replacement speakers at $4k. I have an opportunity to pick up a pair of Dynaudio S5.4s for $4k but haven’t made a move in them yet. 
Any suggestions on a speaker selection or adjustments to my room or speaker wire are appreciated. To sum it up, I’m looking for more instrument detail with good sound staging either by making tweaks to my current set up or getting another flavor of speakers. Thx. 
Ag insider logo xs@2xbfoura
Indeed audio system +room are more akin to a musical instrument than to a microscope for the ears....

Engineering marketting is one thing, audio experience another that ask for the integration of more factors than only engineering electronical feat and technical progress...

“I chased detail (the more the better) for many years until I realized that musicality and tonal balance should have been my pursuit.“... ditto.  Musicality, tonality, and emotional connection.  Dynamics have been eeking in there as well.  Having a full, rich, detailed sound at low volumes in another.


@bfoura, you already know that you like the B&W’s, pull the trigger on one of those suggested pairs!  B&W makes a fine speaker, especially the ones you are looking at!  You may want to add a sub or two down the road but no biggie

@fatdaddy The 3.5’ wall angles up to 9’ and the tapers down to 8’ on the opposite wall. Th room is 13.5 wide and 26’ long. My listening position is about 20’ from the speakers. So, it’s not a traditional listen set up but what I have to work with for now. Whether I move on to other speakers or not, I’m going to bring someone in to help with room analysis and correction. From this post seems that’s going to help either way. I also agree with other opinions that the GE’s are not tuned to accentuate certain frequencies I’m seeking right now. I was fine with my GE’s but after hearing the B&W’s I felt like I’m missing something that I want from listening to music, so I’m going through a process to learn more. I wouldn’t say I’m looking for a speaker that provides for Uber-detail. However, I would like to hear music with a certain degree of instrument separation, as if you we’re listening live. I think a lot of us are looking for that. The question is what’s getting in the way of getting there. 
Pi*r^2
calculate 1, then 2, then subtract.
Now you have the volume of air moved. Of course there are myriad other factors from magnet efficiency to rigidity to.....
But if all you're asking about is diameter, there you go.
@bfoura,

As an owner of a pair of B&W 805d3's, I believe you are hearing the difference between your Golden Ear's and the 805's. I auditioned the 805d3's in the same room with the same front end electronics playing the same music against Golden Ears, Paradigms, MartinLogans, KEF, Dynaudios, and a few others. There was no contest in terms of detail, balance and presence.

I listen to the 805d3's continuously and have never felt any listening fatigue. I have, however, added a subwoofer since the 805d3's do need some help in the lower frequencies.