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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: RE: I think you have that backwards. posted by unclestu on December 8, 2014 at 17:30:16:
About the worst/highest of significance port measurements I've seen or done show the midrange leakage through port in the 700 to 800 hz. So a xover of 2k to 3.5k (fairly typical of speakers), that is the one to two octaves.
And with good number having 400hz to 500hz that then approaches 3 to 4 octaves. So even with fairly shallow 12db slopes your looking at 36 to 48 db down for tweeter output at the interaction point of the port leakage to the tweeter
Now interaction with midrange, that can clearly have an affect. Another thing is port exhibiting resonance (not leakage), that resonance will ADD to the output (see the graph I posted in original response of the Opera Callas).
So with all that going on, for most speakers setups in rooms, the port on the back is the chosen design.
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Follow Ups
- Yes in a two way system or even a more way, Either tend to be 2k HZ or above no matter the "number of ways" - Edp 10:00:20 12/09/14 (0)
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