High ceilings and hardwood floors

Alexanderj is right about the frequency doubling. As it turns out that frequency is about 70 Hz. In addition, the length of the long wall is going to cause an interaction with the ceiling and short wall at additional frequencies that are multiples of 7 of the 70 Hz primary (70, 140, 280, 350,....). The room is certainly workable though. As stated, get a rug on the floor and start working from there. Try everyday, inexpensive things. Sometimes something as common and inexpensive as a fake Ficus plant from Home Depot in each corner can make a huge difference. Good Luck, Doug

Abstract7, you are exactly correct on the 35 Hz. I typically don't calculate the half wavelength because I know in my own mind that it must be considered. I should have mentioned in my earlier post, but I got ahead of myself and hit enter before I realized what I had left out.

Liguy, you had me worried there for a minute. It was late for me also and I was afraid I had made a math error. After I checked the math, I was afraid someone had changed the speed of sound :-). Thanks, Doug