Is Room treatment different for Horn Speakers?

So far the Cornwalls sound pretty good close to the wall.

That's why they are called Cornwalls. In a Corner or near a Wall.

Dang, More robot tests...

I have a lot more listening to do before I go crazy. I think this is the 10th day of ownership.

I am remounting all the absorption panels with cleats and installing a continuous cleat across the back wall, so I can change them easily.

russ69- and that's why I bought them!😊.. I wanted something that didn't have to be set so forward into the room.

Good question ... like every room the acoustic is a factor.

Again Low Freq will muddy everything but I think you are on track with diffusion / first reflection points and maybe a mix of diffusion / absorption on the back wall.

I think you have a relatively wide dispersion with the Horns.

@coachpoconnor You should be fine. If you experience any harshness, try toeing the speakers in a bit. The horns have controlled directionality, and so that can be used to minimize side wall reflections, which the ear interprets as harshness.