Probably just need some room treatments.
Some 242 panels from GIK would do the trick. Knock down those highs and leave the bass along.
https://www.gikacoustics.com/product/gik-acoustics-242-acoustic-panel/
Some 242 panels from GIK would do the trick. Knock down those highs and leave the bass along.
https://www.gikacoustics.com/product/gik-acoustics-242-acoustic-panel/