I would venture to say you have hit the limit of what you can achieve in that room. Changing out components won't get you any closer to the level of realism you want. I would look at appropriating another room in your house.
Oz
I am enjoying my analog system, but what can I do to improve?
I currently have Technics 1200G turntable with Dynavector 17XD cartridge playing through Kitsune LCR 1 MK5 phono pre and Allnic L7000 preamp. My amps are Pass X350.5 and Benchmark AHB2 driving Sound Lab ESL speakers. My system sounds great, but I am wondering how I can take my system to another level. What do you think?