Need to smooth out extreme nulls & peaks

[TS-12]

I have an extreme null at about 95hz, and peaks around 52hz and 130hz.

front and back walls completely covered with 1" pyramid and wedge foam. And small 4" corners in at the back corners.
2" wedges on ceiling above of my sitting position, about 6'x4' area.


I will be working in this room for a few years to come, so I'm willing to spend money on whatever sound diffusion/bass absorbers needed.

What kind of absorbing/diffusion material will help to smooth this out? What modifications can I do inside the room?

the forum doesn't let me attach the pics because I started the similar thread here: Analyzed my room. is it room or monitors VXT6s?

[Glenn Kuras]

You would have done better to keep your room all in one thread but I did check it out.
First the 1" foam on the walls is just eating up the decay (think of this as reverb) times on the upper frequencies but doing nothing for the lower frequencies which is the major problem in smaller rooms. I would get proper bass trapping made from rigid fiberglass or mineral wool and trap as many corners as possible. You might also find that moving the mix spot forward or back will help with the over all response (but will not fix it). You can use the following as a guide to placement.
GIK Acoustics: Room Setup

[TS-12]

Ok, I'll try moving mix spot.
Also, the bass traps will only lower the peaks but won't bring the nulls up right?

[Glenn Kuras]

Originally Posted by TS-12

Ok, I'll try moving mix spot.
Also, the bass traps will only lower the peaks but won't bring the nulls up right?

Bass traps will do both. The most important part is it will decrease the decay (think of this as kind of like reverb) times on the low end which is just as, if not more damaging then frequency response. See the following thread where I did some testing showing frequency and decay times.
Need advice on waterfall!
Also see the following
How Bass Traps Work. Acoustic Panels and Bass Traps.