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Old 8th June 2020
Gear Head

Originally Posted by thethrillfactor View Post
Theoretically if you build 3 ft trapping everywhere then yeah you may have to depending on how big your speakers are and if you can fit them, but hopefully you will have figured that out if you tested the room and build trapping accordingly.

Sitting half way will put you in the null of the first length mode but it will boost the second mode and you will have a peak. If your room is made of concrete and you can't treat your backwall for whatever reason, this maybe your only option to tame the first mode as it will be strong and long. But the minute you start treating the room for the peak of the second length mode your low end will start to drop off.

If you want to theoretically get an idea what your current speaker and listening position is doing, use the room silmulator in REW. You can either move the speakers or listening position or both to get a good idea what might happen afterwards.
Hey thank you very much for the feedback. So what I gather from what you have said is that I may hear everything better at the center of the room right now without treatment, but that's because I don't have any treatment at all and the center of the room is the only position where the first length mode ends and second length mode kicks in, which makes me think that it is the best place to sit. After proper room treatment, the length and power of these modes in the room may change, which will dictate my listening position. Did I understand correctly?

I am still having trouble wrapping my head around the fact that I can hear 40 hz sitting only 4 or 5 feet away from these 7 inch speakers. I read somewhere that 40 hz travels like 8 or 9 meters right? How a pitch that low can be heard right near the speakers? Isn't 2 meters the minimum distance I may able to hear such sub notes? I am only speculating here because I don't have that much first hand experience. For example, can someone sitting 50 cm away from 8 inch speakers hear 40 hz clearly, if the room treatment is successful?