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In the Forum: Horn-Loaded Speakers
In the Thread: Garg wants more horns.
Post Subject: In german we have a saying "wer misst, misst Mist"Posted by rowuk on: 8/6/2024
I am ALWAYS critical of sweeps that are "essentially" parallel - especially when smoothed beyond recognition AND when assuming correlation to an audible trait. "Absorbing energy" or "quieter" does not mean louder, rather the opposite. I would say that your pretty picture tells us nothing about anything except that a single, well chosen capacitor could flatten out what we see. Further questions:
1) signal only 4dB above the noise (60dB vs 56 dB)
2) no polar plot
3) no spectral analysis (to show noise/distortion/decay)
4) no indication if this tweeter can be integrated to anything else.

 Gargoyle wrote:

RED=Smooth cone
GREEN=Textured cone.

This test was done at 60db, the background noise was around 56db.  This seems to agree with the last test, the textured horn is more sensitive across the whole band. Almost 1db louder at 8K.
This is a result, but what is the interpretation? Does this backup or refute the claim that textured surfaces make for a "quieter" horn?
I think the increase in sensitivity could be interpreted as a quieter horn, as it is absorbing more energy.



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