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Room Acoustics and Speaker interaction.

I would like to have a secondary system in my small den which is only 11.5ft by 11.5ft with only a 7.5ft ceiling. Very small and very square...yikes!

So, because the room is so small, the speakers need to be close to the wall that resides behind them.

So this got me thinking about speaker types: sealed/front ported/rear ported, etc as I want to avoid a booming bass. But then I was thinking.....is it really the ports that are problematic or is it just certain low frequencies that are reacting to the room modes? Any thoughts?

How does one determine what frequencies to watch out for in your particular room?
no_regrets

Showing 1 response by pojuojuo

pojuojuo
92 posts
 
When I study about where to situate a pair of speakers I usually take some meditions:
1- find best frequency bass response (<200hz) in the room. You can play with speakers position AND sweet spot position
2- try to adequate the room reverberation time from 200hz to 3150Hz according to your taste preferences (room monitoring studio has typical values from 0,2 to 0,4). For this you will need acoustic treatmen.
3- find the best response over 200hz, play with toe in amd tilt of the speakers

Be careful with rear bass ports, they don't like rear walls...

Good luck!!
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