Suggestions for my system

Hi all - Looking for some suggestions on my system.  So right now I listen near field (just about 6 feet from the speakers) in a small room, around 13x11 feet.  I have a Rega Elicit-R amp with a Rega Saturn-R cd player, and a Rega Planar 8 and Aria for my analog front end.  Harbeth C7ES3's for speakers.  I primarily listen to classic Jazz and orchestral music through my setup.  My main goals in hifi are an expansive soundstage in width and depth, and holography.  My system right now is great, Rega has all the PRAT and is energetic to listen to however I feel like it's not the last word in lifelike representation.  I'm curious to try tube amps or different monitors as home demos to see if I can gain anything and was looking for some opinions on what I should seek out.  The loudest I listen is around 90db with peaks sometimes at 95 but no more.  Also, would like to stay integrated and not separates.  Thanks very much


My setup:
Rega Elicit-R
Rega Saturn-R
Rega Planar 8 with Hana SL
Rega Aria
Shunyata Denali, Alpha power cords
Teo interconnects