Home » Audio » Speaker » Effects of a low pass notch filter on BR versus TL: speculations
Re: Effects of a low pass notch filter on BR versus TL: speculations [message #19882 is a reply to message #19881] Wed, 24 March 2004 16:30 Go to previous messageGo to previous message
akhilesh is currently offline  akhilesh
Messages: 1275
Registered: May 2009
Illuminati (3rd Degree)
Thanx for the pointer Wayne! I was trying to intuite (with complete ignorance of any acoustic engg theory of course) that a bass reflex has no stuffing, while a transmission line does. Hence the bass reflex would emphasize smaller waves more than the TL, where the stuffing would capture the smaller waves from the backward movement of the driver.
Of course this is an unsophisticated, intuitive kind of analysis...

Basically, the "hollowness" of the BR should make it more resonant of the higher frequencies. Of course if adequate absoorptive material is used around the walls , then you are right, it won;t matter. In fact the resonant frequency will be a single one for the BR box, as you say.

So, what do you think, will the contour shaping notch filter circuit affect a BR more or less?

-akhilesh



 
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