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In the Forum: Horn-Loaded Speakers
In the Thread: How difficult is it to achieve Vox Olympian sound
Post Subject: MeasuresPosted by martinshorn on: 1/4/2018
ah forgot. Have some measures to give you an idea. First, this is an (what i use as good budget replacement for the TAD2002 tweeter) a JBL LE85/ 2420 in that trumpet. Green is a „normal“ horn response for comparison. Red is the JBL 2312 trumpet:
Then, the Vitavox S3 in RH330 response
Very important for sound signature as well, the RH330 off axis behavior:
It disperses wide but look closer. This is a dispersion diagram. The higher on Y axis, the more narrow the dispersion (spl drop off acis). As found in research, human ear perceives diffus field linear when the on axis from front comes with a 3khz dip, the so called bbc dip. Better would be a no-dip-off axis, but thats hard to achieve. Here, the vitavox shines, as it „opens up“ around 3k. Very nice for natural phantom source colors.
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