Need help with REW weird results

[Q-ster]

Hello dear community, I am a newb here !

I recently moved to another home studio and so I did some acoustic measurements in order to adapt the acoustic treatment and I am quite sceptical when I look at the results
What I mean by that is that, except from some modes below 200Hz, it looks already pretty good.

I measured the L speaker and the R speaker separately.

I've read that my RT60 should be between 200 - 300 ms, and it is already the case in most frequencies...

My idea now is to use some Caruso Iso-bond WLG 045 (3000 ps/m2. ) in that config : two 40cm thick pannels, In order to handle what's under 200hz.
And I wanted to add two Caruso Iso-bond WLG 035 (10000 ps/m2) : on the first reflections spot,10cm thick. But I'm afraid it will be too much absorption.

So my questions would be :

- Do you identify a problem in how I set up my measures ?

- Is my absorbtion idea legit ?


Thakn you so much for your time !



Just in case, here's the gear I used :

Soundboard : Audient ID44
Speakers : Genelec 8020
Meas. mic : Behringer ECM 8000

 

[Paul Hurt]

I think re-running your measurements with a bigger bass-capable speaker would be a good move. The 8020s won't excite the room much below 80Hz with their 4" drivers. But I'm loving 400mm absorbers (on the back wall/corners?). If you can space them off the wall by 100mm as well, so much the better. I'd be covering that entire back wall with 400mm if I could. And the front corners of the room too. 100mm on first reflection points too, yes indeed. Don't forget the first reflection off the ceiling too.

All about minimising those typical room modes below 120Hz.