Can you make some simple panels and place them at angles within the room and/or in places around the perimeter of the room? Perhaps lean them against the walls at an angle. Even some heavy curtain material hung from the ceiling in places might disrupt these resonant frequencies from occurring.


BIAB & RB2026 Win.(Audiophile), Windows 10 Professional & Windows 11, Sonar Platinum, Cakewalk by Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Kontakt, Focusrite 18i20, KetronSD2, NS40M Monitors, Pioneer Active Monitors