I guess I'm mainly curious about the advantages of the corner loading and adding the midrange horn.

1. Would they do fine placed in the corners of a HT 16' wide and 20' deep? Seating is at 13' and 18' from the front wall. Would they need to be toe'd out at all? Would you change the orientation of just the Mid-Tweet section or the entire speaker?

2. Do you suggest treating the front corners above the 7Pi's? If I were using non-cornerloaded speakers I would build corner trap style bass traps from floor to ceiling. Should I make a bass trap that extended from the ceiling to near the top of the 7pi?

Could you email me the plans for both the 7pi and 4pi?

Thanks
Max

Room treatment is specific to the room. What you want is well damped room modes and reduced early reflections. The directivity and orientation of the speakers helps reduce early reflections but if you have a lively room, you can always add absorbing or diffracting surfaces. Framed drywall construction helps damp room modes but if you have rigid walls, you might want to add panel dampers. Adding subs also helps, as the more bass sound sources you have, the more the modal region is smoothed via dense interference.

Once the room is complete, I will build absorption panels at first reflection points. My setup will allow me to tweak the treatments as necessary.

I was more concerned with standing waves in the two front corners. In the past I've made corner trap style bass traps, but with corner loaded speakers that won't be possible, at least not in the bottom front corners. I guess I will just use trial and error.

I will have 2 separate subs so hopefully, along with bass trapping, I will minimize room mode effects.

Thanks for the replies.