Forget upgrading for now...
Learn acoustics basic...
Learn about mechanical and electrical working controls of the system /room...
Then instead of being a buyer you will learn how to do thing right...
Taste matter way less than acoustics...😊
Only marketers dude plays with your tastes ...There is no tastes in acoustics done right...
For sure buying is more easy than learning by experiments and studying... But trust me it is more fun... And less costly to think before buying...
Try to put what you already have at his optimal level... You may be surprized by the difference between before and after...