Does the first reflection point actually matter??


Hello my friends,

So please read the whole post before commenting. The question is nuanced.

First, as you probably know I’m a huge fan of the well treated room, and a fan boy of GIK acoustics as a result, so what I am _not_ arguing is against proper room treatment. I remember many years ago, perhaps in Audio magazine (dating myself?) the concept of treating the first reflection points came up, and it seems really logical, and quickly adopted. Mirrors, flashlights and lasers and paying the neighbor’s kid (because we don’t have real friends) to come and hold them while marking the wall became common.

However!! In my experience, I have not actually been able to tell the difference between panels on and off that first reflection point. Of course, I can hear the difference between panels and not, but after all these years, I want to ask if any of you personally know that the first reflection point really matters more than other similar locations. Were we scammed? By knowing I mean, did you experiment? Did you find it the night and day difference that was uttered, or was it a subtle thing, and if those panels were moved 6" off, would you hear it?


Best,


Erik
erik_squires
Erik - I've been following Dennis Foley, Acoustic Fields, youtube video series, https://www.youtube.com/watch?v=uuSgzTk0lIE. He will perform a free initial consultation/analysis of your room.  For the DIY guy, he sells a software suite package for building bass traps and diffusers.  I cant speak for his work as I'm just kicking the tires on room improvements at the moment, but he seems to understand acoustics and does a great job explaining room issues.  Best of luck!
Erik, I use GIK panels as well. I have a small room in which I listen near field. The panels are essential, but I moved the two on the sides about 1-2 feet toward the back leaving the first reflection point exposed. What a difference. The front and rear panels needed adjusting as well, but the two on the sides made the most profound difference.

I think the FRP is a good place to start and adjust from there.

Rollin