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. 
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Since my last post been doing a little tweaking with gear and such. Finally got around to rerouting my speaker wires which saved me 13’ with each run. In the process I learned one of the speaker wire arrows was pointing the wrong direction, lol. I think those changes made some Audible difference. The greatest benefit was hiding a bunch of unsightly speaker wire. I’m still about 18’ from the speakers and will have to live with that till I get new furniture for my room so I can move my listening chair up to about 10’. I can tell a slight difference in sound staging standing closer to the speakers so I think once I get them dialed in to a new listening position they will sound even better. Of course shortening the speaker wire run even more is important and still thinking how I can make that happen. 

There are some caveats to all this in that I introduced some new gear to my system. I picked up a Rowland 112 amp, an Audible Illusions L3A tube preamp and a pair of B&W 803 D2’s. I’ve been switching out my McIntosh 152 amp with the Rowland and my C48 preamp with Audible Illusions. The B&W’s are not as easy to move as the GE’s so they’ve stayed in the mix with the various amp and preamp combinations. I did a test with the Sympathy 4 Devil song that got me started on this exploration. The guiro percussion at the beginning was more prominent with the 803 D2’s than the GE’s but not like with the 805 D3’s I heard. So, the room, amp, interconnects, setup, etc. where I originally heard Sympathy obviously were a major factor. 
Another thing I noticed is that none of the speakers or equipment I’ve been trying absolutely blows each other away. I can hear differences but really nothing that says I can’t live without this or that component. At this point, I feel the GE’s and B&W’s are pretty close. I do think the B&W’s have a higher ceiling for audio potential with better placement, speaker wire and other tweaks to my system. I also like the musicality of the AI preamp but like the functionally of the C48. Everything is there with the C48 and does a very good job without having to add a DAC or phono stage. I thought I definitely liked the Rowland better but after putting the McIntosh back in, feels like an old friend. Obviously, I still haven’t drawn any firm conclusion other than attention to detail will create the detail one is seeking,  whatever that may be. 

I’ve owned a ton of gear and countless speakers of all designs.  The B&W Diamonds are my favorites because they deliver such inner detail and harmonic texture that it puts me in the venue!  Having extra gear around is fun so you can mix it up a bit if you get bored.
@bfoura ...For absolutely best sound for the money, I have not heard anything superior to either my Krell Vangaurd Digital or Krell K 300i !  They synergize exceptionally well.  May offer up my Vangaurd soon for a very nice price!
The 803D2’s are an intriguing speaker that I purchased without a demo but had heard other B&W’s and took a flyer in them because I got a good deal and figured I could move them for same price if I didn’t like. Right now they are pretty close to sound as my Triton 1’s but in doing some research understand they like power. I was disappointed to learn that my McIntosh 152 is only 150 watts across all ohm taps. I have a Rowland 112 that I can get 275 watts tapped into 4 ohm. I’ll be trying that out today or tomorrow. On loan from my local Audio dealer I have a Rotel rb 1590, which is tops out at 350 watts per channel. So, it will be intersecting to hear the difference more juice makes with these speakers. 
This whole search for more detail brings me back to the importance amp selection  mentioned in this thread. I auditioned the 805 D’s through a Gryphon Diablo which is a 300 watt amp. So that, compared to all the other variables could be what makes the difference in the that quest for more detail, definition, soundstage, what ever you want to call it, especially with 800 series speakers. Seasoned audiophiles know this but a lot us on the learning curve may not fully appreciate the importance and think 150 watts should cover most applications.  My dealer also lent me a pair of Rocket 33 biwires to try as well and suspect that will help bring out the detail even more with these B&W’s.