Jazz at the Pawnshop
A phenomenal recording that won't disappoint
Personal opinion is you should be able to fix your problems with two things. See if the speakers can be set up on the short wall. Use the Vandersteen method for figuring out where they should be. It is on their website. Also a couple subwoofers(or more) would help. I would send everything from 80-100 Hz through the sub woofers. This takes load off your main amp and less distortion in mid range as you take away most of the speaker cone movement. This will do a lot to open up your sound stage. You don't have to buy big expensive subwoofers to achieve solid bass down to 30 Hz. I talked to Duke at Audiokinesis and he has an amp and 2 subwoofers for $1600. They are 10" subs.
I say this because I personally wouldn't like taking a loss on speakers that cost $5500 and are advertised as having a wonderful sound stage. You already have some sound treatment. That is great. That helps fix any dips and peaks but you could still have those if your speakers aren't placed correctly. PS I have Bluesound Node 2i and imaging, soundstage and detail are not a problem. however, I say that without trying a better streamer. Nothing in my system is very expensive but once I found the Vandersteen formula, I was done moving speakers around like I did the previous 8 months.
I could be way off here but you kind of sound like what I went through years ago. What I came to realize is that I just don't like some kinds of music. I used to think that a better system would be so good that I'd enjoy anything on it. Not true for me. Going tubes didn't help, R2R didn't help, high end streamer, cables...nope.
While I love lots of different kinds of music, my brain/ears just don't like a lot of the music that I'd call "congested", where too many instruments and singers are active at a given time. Not to say I'm strictly a pipe and slippers kind of listener...far from it.
You may want to try this. First buy/use a really good vinyl pressing of an album that you're not really enjoying while streaming and play it on your tt. Does it sound night and day better? If not, don't bother upgrading your digital sources. Do you have a friend or family member that has a much better system than you, or local hifi shop? Listen to this same music and see if it's much better.
You may find out it's not your system. Good luck!!
Go for Klipsch Heresy's and add subwoofers down the line. Without subwoofers you are missing most of the visceral sensation you get at a live concert.
Harshness is a problem we all have with certain recordings when played louder. You either have to back down on the volume or add a harshness filter which can can do digitally.
Different streamer. I suggest the Simaudio 680D which has an awesome DAC. Also consider the Nordost QX4 it is very good at aiding in instrument separation and adding depth or blackness to the sound.
adding a better turntable isn’t a bad idea either. Trust me when I say this, nothing beats great vinyl for sound, especially with the amps you are using. Look at Rega for the turntable change.