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It does take some time for the movement to stop, but this duration does not exceed the time corresponding to the frequency being played. If it does, it reflects itself as a roll off in the frequency response. The driver's response time doesn't affect its distortion directly, as long as the...

People are sleeping on Me Geithain - 800K. 126db max output. Cardioid. Coaxial. 15db side and back cancellation with cardioid. https://www.me-geithain.de/en/me-800k.html Cabasse - La Sphere should measure good too. 4 way coaxial, and one of the drivers is a 21" woofer.

You seem to be forgetting that each 8381 speaker contains a 6000W amplifier, resulting in a total of 12000 watts of amplification for a pair. To achieve similar loudness levels with Magico speakers, you would need comparable amplification. The 8381 speakers can reach significantly higher SPLs...

Beryllium: Potentially higher breakup frequency, the frequency where the driver loses its pistonic movement(linear behavior) can be potentially very high. Diamond coated beryllium: That breakup frequency can be even higher than normal beryllium. Does it matter? No. Purifi's aluminum tweeter has...

And this is spectral content of different types of music. The spectral content of actual music aligns closely with KH 420's max SPL vs frequency graph. Typically, music shows 30-40 dB higher SPL in the bass frequencies and 20-30 dB higher in the midrange compared to the treble. This pattern...

Dome tweeters can handle up to 110 dB(maybe even more, check the max power handling and sensitivity, you can calculate the short term max SPL peak) during short peaks without any issues. The reason they cannot sustain levels beyond 100 dB(100-106db depending on the waveguide) with continuous...

I can't see max SPL vs frequency measurement there, can you?

No dome tweeter in the world can exceed the 100 dB mark up to 20khz with a continuous signal due to heat buildup in the tweeter's coil. A tweeter with a sensitivity of 90 dB is about 1% efficient, meaning that out of 100 watts, 99% is converted into heat, and only 1% is used for sound...

Measuring and determining what to measure are not the biggest challenges. The greater difficulty, I believe, lies in correlating these measurements with psychoacoustics and user preferences, which is the most significant challenge in sound reproduction and audio science research. We can...

Group delay measurements(in anechoic chamber) provide the transient response, which is the delay it takes for the driver to respond to the input signal at each frequency. This represents the speed of the driver. If a system has a smooth on-axis response, a consistent distortion profile...

cool story bro

Can we see the results of these tests?

Problem with Panels, Air-bending Manger drivers: Beaming. Plasma tweeters: Low sensitivity, low max SPL, average distortion. The only thing they can do well is to produce frequencies up to 150khz. Piezo drivers are better in reproducing very high frequencies, they can have incredibly high max...

Thanks a lot! It is incredibly confusing that there are two different definitions for the same term, far-field.

Can you elaborate more on that?

this is the math, roughly you can see that farfield is like x3 distance of the longest dimension of the source up to x10.

The definition of the far field I mentioned is based on Floyd Toole's research. It is not a static value; it depends on the size of the speakers.

Estimated in room response is far field estimation. The KH 120II's likely won't sound anything similar from nearfield to what the in-room response estimations suggest. Only early reflections + direct sound matter for near field listening. Far-field estimation, also known as estimated in-room...

If you are talking about dispersion pattern of a driver, It is possible to make rough estimations but there are many factors that determine the dispersion pattern of a driver at a certain frequency. 1- Baffle shape. 2- Dimensions of the baffle. 3- Overall enclosure shape. 4- Linearity of the...

There are inherent traits. The inherent characteristics of how drivers sound—whether they're ribbon, dome drivers, or utilize horns—are significantly influenced by their shape. This is because the shape directly affects how each type of driver disperses sound throughout a room. For example...