RT60 measurement in my room

[Analogous]

Grindstone explain that quite well. Room boundaries start to dominate at low frequency and the microphone can't process reflected sound quite well. If boom and resonance is an issue in your listening position, try sitting in midfield or maybe near field to listen. This would somewhat mitigate most of the room gain issues. You will also benefit from better imaging.

Thanks Hari. Indeed I have been extensively experimenting with both speaker positioning and my listening position too trying to find the optimal sound. As I mentioned earlier I am not able to hear the extra problem resonance at the low frequencies as shown in the RT60 graph. But that’s my problem/puzzle to solve.