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This is currently done in EASE GLM, although in lower resolution and only a few manufacturers produce these files, and even then not consistently. It is interesting in examples where there is a notable artefact. For example, the vertical lobing produced by the Genelec S360A.

This thread proves, over and over, that reading is one of the best Entirely the right distinction.

@Krit The only way to solve whatever issue you have is to do a proper investigation with a measuring microphone and some education. If you refuse, then at least do this: Put the speaker on a stand right in front of you, with the tweeter at ear height, nothing between you and the speaker...

No, the actual speakers. Not the cables.

You're wrong about something. This is the spectrum of left versus right speakers in your recording. They line up very well other than what I would guess would be positional differences of your phone. There is nothing that stands out as being obviously different that would signal vibration...

I'm not in your room. I don't hear what you hear, especially not through an unsteady phone. Do you have a measuring microphone? Did you try to dampen vibrations with something under the speaker? Did you check that nothing on your desk or elsewhere is causing the vibration? Edit: Did you try...

I recommend reading books on audio and not jumping to conclusions.

The SUB121. The Korean forums have a bunch of information. Comes in active and passive, flat (50cm x 34cm x 25cm) and cube (34cm x 34cm x 34cm). I think the below is 2m RMS, so 9dB higher for 1m peak. @AsciLab CEA2010 16Hz: 89.2dB 20Hz: 93.9dB 25Hz: 98.7dB 31Hz: 104.6dB 40Hz: 110.3dB 50Hz...

https://www.spinorama.org/speakers/Revel%20F208/ASR/asr-v2-20210519/SPL%20Horizontal%20Contour.html https://www.spinorama.org/speakers/Revel%20M105/ASR/asr/SPL%20Horizontal%20Contour.html These graphs are your friend. Look at the extension of directivity control into the low hundreds of Hz.

My best effort at extracting the data for the ADAM T8V in the initial post and lining them up. I don't think this level of deviation is worth thinking about.

Why would you knowingly buy something with significant flaws? The Edifier MR3 is $100-$150 USD, while the Kali LP UNF is $350. Each price is for a pair. A single Neumann KH80 is $550, a single Genelec 8010A is $400, but Kali is competing in terms of quality directly with them. I looked through...

Poor speakers are defined by these problems: inconsistent on axis response, inconsistent off axis response (directivity errors) and resonances. The Edifier has all three. Outside of that, Edifier is a mass market brand, while Kali is a pro brand with serious expertise. There is no reason to...

We should not recommend any speaker with a prominent resonance. Perceptually, it is one of the worst flaws.

https://www.spinorama.org/speakers/Kali%20LP-UNF/ErinsAudioCorner/eac/SPL%20Horizontal%20Contour.html https://www.spinorama.org/speakers/Edifier%20MR3BT/ErinsAudioCorner/eac/SPL%20Horizontal%20Contour.html These are the graphs you look at. Edifier has a massive resonance around 1.3kHz. Don't...

Ostrich tactics at the moment.

The atavism of the design makes it ugly to me.

Remember that the support is fairly low in level and is used to cancel decays, not the signal. Speakers don't need to work as hard as subs normally would. Right now there isn't much concrete guidance about how to optimally manage speakers. Users are experimenting for the best result. At some...

C50 was developed in architectural acoustics to measure speech clarity in classrooms and the like. An equivalent measurement for concert halls is C80. These are crude metrics and heavily depend on the size, construction and furnishing of the room far more than they do on speakers. More useful...

This will be me whenever ART is made available.

The data is available. https://www.spinorama.org/speakers/KEF%20LS60%20Wireless/ErinsAudioCorner/index_eac-0-degree.html https://www.spinorama.org/speakers/KEF%20Reference%201%20Meta/ErinsAudioCorner/index_eac-short-port.html