| To expand on what Frank said: adding good broadband absorption to a room with low end problems will raise the nulls, and lower the peaks. The bass sounds flatter, more accurate, but the lack of boominess sometimes fools people into thinking the bass went away. That's not quite accurate; the bass peaks went away.
Get some familiar recordings that have been mastered by a pro and listen in the new room to get used to the new, more accurate sound.
I agree, don't worry about diffusion for now. Step one is adequate bass trapping. The more you add, the flatter your response will get. |