Yeah that’s how they naturally are. I do wonder why you bought 40k speakers if you don’t like what they do, but now your best path is measuring the room with a microphone and some room correction software, applying a target curve that’s to your liking, exporting a convolution filter, and importing it into Roon MUSE.
A UMIK-1 isn’t expensive and even cheaper on eBay:
https://www.minidsp.com/products/acoustic-measurement/umik-1
For software there are several choices, and you will find threads about each on the forum:
- HouseCurve is easy and cheap if you have an iPhone or iPad. Room correction using your iPhone and HouseCurve
- Focus Fidelity is slick and powerful, for the Mac. A few words about Focus Fidelity
- HAF (Home Audio Fidelity) is a guy in France, I believe, who creates filters as a service, based on your measurements. HAF - Home Audio Fidelity (Room Correction / convolution filter creation)
- REW is open source and can do many things but the learning curve is steeper. A guide how to do room correction and use it in Roon
There are others but these seem to have most contributions on the forum.
As a bonus, it will probably improve the room response generally, too.