f3 of 66hz

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Hi,

If I get an f3 of 66hz from a closed-box how much difference will
the loading by the room make ? How does this happen ?

Will, mounting the driver closer to the lower end of the cabinet make a big difference ?

Will using 2 drivers in parallel improve the output ?

sunil
 
""If I get an f3 of 66hz from a closed-box how much difference will
the loading by the room make ? How does this happen ?""

Do a search on room gain - I believe Kelticwizard posted some graphs.

I'd reckon on needing a sub for full range....

""Will, mounting the driver closer to the lower end of the cabinet make a big difference ?""


I doubt a "big" difference

""Will using 2 drivers in parallel improve the output ?""

Sensitivity wise,yes - won't lower the f3 though. need to eq or port or TL ...

Rob
 
sunil said:
Hi,

If I get an f3 of 66hz from a closed-box how much difference will
the loading by the room make ? How does this happen ?

Will, mounting the driver closer to the lower end of the cabinet make a big difference ?

Will using 2 drivers in parallel improve the output ?

sunil

I don't see Keltic's link.

Think of the speaker operating in four conditions: free space, on an infinite wall, on a wall and floor (or ceiling) and on two perpendicular walls and floor (corner) -- for each of these settings the speaker is "coupling" into a different mechanical impedance.
 
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