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In the Forum: Horn-Loaded Speakers
In the Thread: Phase plug for midbass
Post Subject: Re: Phase plug for midbass - if you need it.Posted by ulf on: 11/9/2006
Dear Romy,
well the horns are actually not designed for HF. The intended working range is up to 5-700. But since we use low Q, only second order filters we want to have a rather large overlap in the crossover region and a fairly even pattern over the entire working range.
About the shape of the phase plug. It simply is close to conical. The area through the plug follows the tractrix curve. There is also a 5mm front cavity between the diaphragm and the plug so the plug is quite close to the diaphragm.
How can I include an image? If you take a look at it you will see what I mean.
Best Regards: Ulf
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