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In the Forum: Horn-Loaded Speakers
In the Thread: Phase plug for midbass
Post Subject: Midbass followupPosted by malinowski on: 9/30/2007
This is terrific information Ulf. Thank you very much. I won't start builing until early december but will post the project here. Plan to form my horns from microcrystaline wax first, so i can experiment with throat termination. I have a background in lost wax casting of metals. so this is the approach most familiar to me... wax, plaster molds, melt and pour.

I was very interested in the diameter of the throat you used and glad to hear that such a small throat worked successfully for you. I was looking at Romys suggestion for a convex termination but wonder why this wouldn't force a lot of unwanted vibration back to the cone and cause distortion.. wonder if there might be way to bleed off the unwanted energy into a chamber around the perimeter somehow... will have to think about this. should be easy to test in wax.

Also interested in your reach chamber dimensions.. I will use both of these as a starting point. Thank You very much!

While I have your attention : )
I am curious what crossover point you arrived using what looks like a 1" compression driver above it? 1500hz?


Also, had you spent much time listening to these mid bass drivers without the horn? If so, how much of listening to them sans horn was helpful in designing the horn? or was the driver such a different animal without the horn and phase plug... I wonder if it is a productive exercise to setup drivers without their front horns and listen.. and add and configure the horns from there.. Romy, anyone else, please chime in her with your thoughts on this. Thank you.

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