Actually, Doug28450 that is correct for a full wavelength--but a half wavelength is a node as well--so 35Hz is going to be a problem. It is very difficult to correct that with acoustic treatment. I have hardwoods and an 11 foot ceiling. A nice oriental rug works well--but it still has very little effect on low frequency. You might need to go to electical correction--it's considered a last resort by many, but sometimes there's really no other way. In my system I had to do this (17 foot wall to wall)--the flat response is a great improvement over the slight resolution loss in the bass (it's bi-amped so the correction is only on the bottom end). I'm using a McIntosh EQ--there are better ones, such as the TACT and I've heard the P1A is good if you are using digital only--but I have no experience with this product. Acoustical wall treatments will help the high freqency--I would recommend those for the first reflection.
High ceilings and hardwood floors
Moved into a new house. Man my system sounds so bad I never want to listen anymore! My old room was carpeted and had 8 foot cielings. New room has 16 foot cieling. Sounds like I'm in a cave. System has no weight or focus. Very thin. I'm sure wood floors don't help. Room is about 16 x 28. Anyone have any thoughts/help for me?
Dave
Dave