Room Gain

hoppaz

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Does anyone ever think about the free benefit of room gain before designing their sub?

I have been thinking about using the room as a benefit and to this end I will be looking to re-design my subs with a new design to make use of this free benefit.

To give eveyone an idea you aparently take 565 and devide this by the feet measurement of your longest wall dimension to give you the hz you need to start to arrive at gaining room benefit.
 
Wow!! that sounds like to much work why not just add another sub or two or three;)
 
They cost money Mojo this is free if you get it right and also takes up no extra space
 
Does anyone ever think about the free benefit of room gain before designing their sub?

I have been thinking about using the room as a benefit and to this end I will be looking to re-design my subs with a new design to make use of this free benefit.

To give eveyone an idea you aparently take 565 and devide this by the feet measurement of your longest wall dimension to give you the hz you need to start to arrive at gaining room benefit.
all you are doing there is calculating the lowest room mode (the 1st axial mode), you then have to determine the actual response at the listening position given a sub in target locations which may mean you sit in a null rather than a peak. The actual amount of room gain across the frequency range varies with positioning & how the room is constructed. I'm not saying you can't factor this in to a design, just that I don't understand how what you posted does that.
 
what if I know the room, the listening position and have control over the position of the sub?
 

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