To mitigate edgy HF due to room issues - as opposed to electronics:
- Try toe-ing the speakers out a few degrees.
- Try hanging a somewhat dense fabric on the wall - dead center behind the speakers. Experiment with a bath towel at first. If it works, buy a professional acoustic panel.
- Try toe-ing the speakers out a few degrees.
- Try hanging a somewhat dense fabric on the wall - dead center behind the speakers. Experiment with a bath towel at first. If it works, buy a professional acoustic panel.

