$1500 to spend...

Current system:
Marantz SA-KI Ruby CD/DAC
Rega Brio-R
Wharfedale Diamond 10.7

Hi all, I’m looking to upgrade my system with $1500 burning a hole in my pocket and wondering what others think. After a lot of research I’ve come to 2 options:

1) Purchase new speakers: Wharfedale EVO 4.3

or

2) Purchase used integrated: Rega Elicit-R or Yamaha A-S2100

I love the sound of my system and my speakers but I’ve recently moved to new home with a smaller listening room and my Diamonds sound slightly boomy/thudy in the bass. The new room is 12’D and ~10’W. A wall on the left and an open space to the living room on the left. Which option do you think better solves for my issue and also provides a significant upgrade for the money?

Cheers and TIA