Home Speaker Asylum

General speaker questions for audio and home theater.

Re: What determines port location?

207.54.141.60

Another factor not yet mentioned in this thread is the issue of midrange radiation out the port. Most ported systems have an open internal volume, and only a little absorbent material on the walls. This leads to internal reflections in the midrange that can enter the room through the port. With a front port these will be more audible than with a rear port which makes them diffuse and less directional. This is more of a problem with 2 way designs with their higher crossover, so the mid-woofer covers a lot more range. At higher frquencies you can also get port resonances, again more audible with a front port.

On the other hand, a front port does give more freedom of placement. Such as near a wall, or in a bookshelf.

A rear port generally is a signal that the speaker is designed for placement away from the wall.


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  • Re: What determines port location? - Bold Eagle 18:31:40 01/01/02 (0)


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