- Thread Starter
- #61
I found a few other measurements of this speaker. I don't know if it's interesting, but still, here they are. 
My measurement: Tweeter axis (not the one used for spin)
Australian Hi-Fi: Gated part of their measurements (Newport Test Labs)***
Stereo.de: Full-range measurement, method unknown to me
Audio.com.pl: Gated part of their measurement, on-axis
The 900Hz peak can be seen in all of them.
Lower level in the Australian Hi-Fi measurement, and there's something going on at 14.7 kHz as well (huge dip).
Audio.com.pl stands out above 3 kHz, and I think I know why. Microphone height was probably a bit off for their measurement. I obviously can't say for sure, but this is how my +10 degree (vertical) looks, compared to their "on axis":
It looks very similar. Simply having the mic a few centimeters too high would cause that uneven tweeter response (narrow vertical directivity).
Another thing worth mentioning is that I "corrected" the stereo.de measurement by adjusting the horizontal axis (when plotting it). With the x-axis starting at 30Hz like the lines would suggest, the whole response is shifted to the left, with -10dB at 30Hz - not accurate for this speaker. By starting at 50Hz instead, it lines up with all the other measurements (bass response, 900Hz peak, and overall tweeter response).
For full transparency, here's the "original" response (30-20000Hz):
audio.com.pl
www.stereo.de
And finally, here's a measurement of an older Triangle speaker, Esprit Comete Ex:
(30 degree horizontal average)
www.stereophile.com
*** Please ignore the full-range response in the Australian Hi-Fi review. They are merging in-room averaged pink-noise measurements with gated ones, at 1.5 kHz, hiding the 900 Hz peak.
My measurement: Tweeter axis (not the one used for spin)
Australian Hi-Fi: Gated part of their measurements (Newport Test Labs)***
Stereo.de: Full-range measurement, method unknown to me
Audio.com.pl: Gated part of their measurement, on-axis
The 900Hz peak can be seen in all of them.
Lower level in the Australian Hi-Fi measurement, and there's something going on at 14.7 kHz as well (huge dip).
Audio.com.pl stands out above 3 kHz, and I think I know why. Microphone height was probably a bit off for their measurement. I obviously can't say for sure, but this is how my +10 degree (vertical) looks, compared to their "on axis":
It looks very similar. Simply having the mic a few centimeters too high would cause that uneven tweeter response (narrow vertical directivity).
Another thing worth mentioning is that I "corrected" the stereo.de measurement by adjusting the horizontal axis (when plotting it). With the x-axis starting at 30Hz like the lines would suggest, the whole response is shifted to the left, with -10dB at 30Hz - not accurate for this speaker. By starting at 50Hz instead, it lines up with all the other measurements (bass response, 900Hz peak, and overall tweeter response).
For full transparency, here's the "original" response (30-20000Hz):
TRIANGLE Titus EZ
Każdy komponent jest zaprojektowany, obliczony i opracowany na podstawie technicznych innowacji oraz rozwiązań będących wyłącznie w dyspozycji ...
Testergebnisse
And finally, here's a measurement of an older Triangle speaker, Esprit Comete Ex:
(30 degree horizontal average)
Triangle Esprit Comete Ex loudspeaker Measurements | Stereophile.com
Sidebar 3: Measurements The Triangle Esprit Comete Ex is significantly more sensitive than the norm, my estimate of its voltage sensitivity coming in at 91dB(B)/2.83V/m. While its impedance magnitude drops below 5 ohms in the lower midrange and mid-treble (fig.1, solid trace), and the electrical...
*** Please ignore the full-range response in the Australian Hi-Fi review. They are merging in-room averaged pink-noise measurements with gated ones, at 1.5 kHz, hiding the 900 Hz peak.
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