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In the Forum: Horn-Loaded Speakers
In the Thread: Phase plug for midbass
Post Subject: Phase plug for midbassPosted by ulf on: 11/8/2006
One advantage of the use of a phase plug in a midbass horn is that it will beam less at higher frequenzies than a horn without phase plug. If the phase plug is designed for the specific horn and driver it will help "steer" the HF.

Me and a friend designed (and built) a 100Hz Tractrix midbass horn for a TAD1201H driver and we used a phase plug that was about 15cm long. It followed the tractrix curve all the way to the diaphragm.

The basic idea was to get a horn that would have a wide distribution at it's upper region.

Practical tests have shown that it works rather well. Compared to a similar horn without a phaseplug it beams much less.


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