Home Speaker Asylum

General speaker questions for audio and home theater.

RE: b&W cm1 notes - midrange and bass

Ported designs can be quite good over hang wise. The designer has great leeway in the way a woofer transitions from flat to 24 dB roll off of a ported design and that transition is critical to the degree of over hang. That said a well designed closed box with low Q( a poor example is the LS3/5a although there is a logical reason for it) closed box inherently has significantly less over hang than a ported one. The only one who might claim other wise is Rock port speakers.

But I'm sure that a designer using ported designs(almost every one) will claim that on balance, a ported design is a better compromise of control AND low end cut off. I don't feel that way. I prefer closed boxes. But I can understand the argument.


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