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Below is a DATS measurement of the B&C DE35 tweeter

The manufacturer applies a big scale chart to hide impedances anomaly.

However, measurements actually appear consistent with the published datasheet.

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Below is a DATS measurement of the Transducer Lab N26MG-G tweeter with a magnesium dome.

The manufacturer’s datasheet matches the measurement within 5%! 

I like this brand very much, as I own a few of their products.

Below is a Celestion CDX1-1445 mounted on a FaitalPRO STH-100 horn

Below is a Beyma CP22 tweeter

Below is a Transducer lab N26C-t, ceramic dome and Titanium voice coil)  with a diy front horn attached in front

Below is a Transducer lab N28BER, beryllium dome, with a diy front horn attached

Below is a newly acquired BEYMA CP21 (brand new)

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cp21.JPG
cp212.JPG

On the left is an overlay of the Beyma CP21 and CP22

Makes comparison easier.

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Identical motors and diaphragms.

CP22= bullet front horn has a narrow 40° wide dispersion

CP21= 140°degree wide dispersion, inspired by the JBL 2405 slot tweeter.

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The CP21 has lots of horn resonance, as seen by the impedance curve. This doesn't bode well, but wide dispersion tweeters do offer big acoustic advantages. Some trade-off to consider.

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Subjective evaluation will dictate which design matches my system best.

Nothing better than actually trying both out, instead of deciding through reading countless reviews. Review tend to favor the CP21.

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(update Mach 2020, I prefer the CP22.)

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