Home Speaker Asylum

General speaker questions for audio and home theater.

RE: I'm a Geoffrey Horne fan/ conspiracy theorist!

The way a ported speaker transitions from flat to the final 4th order roll off is critical to the degree of overhang. Some ported boxes are quite good if not as good as closed boxes which have second order roll off which all things being equal is superior to 4th order inherent in ported designs.

As I mentioned the one case of a ported speaker which seems different are Rockport designs. The designer claims ported 2nd order roll off and I checked a Stereophile test where one of his designs did roll off at a 2nd order rate from about 40 Hz to 20 Hz. But I suspect and the curve didn't extend far enough that below 20 Hz the roll off goes to 4th order. I don't know and I also don't know what that means to the performance. My guess is the best bass control possible from a ported design. And the few times I've heard a Rockport that seemed to be confirmed.


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  • RE: I'm a Geoffrey Horne fan/ conspiracy theorist! - hahax@verizon.net 12:31:46 05/10/17 (0)

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