Where to out these 2d acoustic panels

[No_hair_left]

Bought some gik panels on the cheap that someone was offloading and after looking online I see that the brown ones are 2d panels and only really used for ceilings and back wall.

I was thinking of doing the slim ones as first side wall reflection, I put a 4 inch freestanding bass panel behind the mlp and another one near it because I have no space left anywhere else.

I don't know what to do with the 2d ones. I was thinking one above the bass panel and that just leaves one spare, would the one above the panel even do anything and I'm assuming they are no good for first reflections given they go up/down so are less efficient.

 

[kemmler3D]

If you have a mic to do measurements you can zero in on good locations to place panels by looking at the ETC results in REW.

2D panels won't really be less efficient than 1D panels, they'll just scatter vertically as well as horizontally, they might actually do more than the other panels in terms of reflecting away from MLP, it depends on how they're constructed.

I'm not really an expert in acoustics but if I was going to do this myself with no measurements I'd try first reflections and back wall primarily.

 

[No_hair_left]

If you have a mic to do measurements you can zero in on good locations to place panels by looking at the ETC results in REW.

2D panels won't really be less efficient than 1D panels, they'll just scatter vertically as well as horizontally, they might actually do more than the other panels in terms of reflecting away from MLP, it depends on how they're constructed.

I'm not really an expert in acoustics but if I was going to do this myself with no measurements I'd try first reflections and back wall primarily.

Is the ect the reflections? So I would take a measurement and then look to see which of the 2 panels gives a bigger reduction at the spike?

 

[kemmler3D]

Is the ect the reflections? So I would take a measurement and then look to see which of the 2 panels gives a bigger reduction at the spike?

Yep, ETC can be used to find reflections. If you look at the timing of each spike you can determine the distance the sound traveled, which gives you a good clue of where the reflections are coming from in the room. So actually before you even move the panels you can find problem areas that way.