Posted by akhilesh [ 129.244.120.71 ] on March 24, 2004 at 12:21:29:
HI Everyone,
Since it is my lunch break, i got to thinking about the differential effects of a low pass notch filter on a bass reflex versus a TL box.
My initial thought was:
A bass reflex box emphasizes the midrange too, because of resonance. It emphasizes the midrange more so than a TL.
A low pass notch filter (one inductor and one resistor in parallel as a unit, and the unit in series with the driver) will allow for a HIGHER resistor value without losing clarity, since the midrange is getting emphasized in the BR box.
Of course, a higher resistor would lead to MORE bass.
So, for a given driver, the differential effect of a low pass notch filter will be greater for a well designed BR box, than for a well designed TL box.
I understand that the BR may not emphasize all frequencies equally, and a TL may be a bit less colored, but put that aside for a while.
What do you all think?
-akhilesh
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