Manufacturers resist publishing revealing measurement data because it would embarrass them.
Evidence
Marketing departments insist that graphical technical data are incomprehensible, so they deliver numerical data that are almost useless, but familiar. My assertion is that data in the form of spinorama or some other comparably revealing graphical format are easily comprehended with the simple guidance: flat and smooth are good, and the more similar all the curves look, the better the sound is likely to be. An engineering degree is not a requirement. However, I do understand why manufacturers are not rushing to reveal useful anechoic data in the ANSI/CTA-2034-A (spinorama), or any other, format. Some of them would be embarrassed, and all of them would have the commitment to maintain, in production, the performance of the “golden prototype.” — , Toole, Floyd E - Sound reproduction-…, 1900
Categorization
- SEED: Article angle: ‘why your favorite speaker brand hides its measurements’ — the commercial incentive against transparency in hi-fi.
- SHARE: Good for an audio-engineering friend who follows the spinorama debate.
Related
- The spinorama is the default standard display for anechoic loudspeaker data. (similarity 0.80)
- Published spinorama measurements frequently violate standard resolution requirements and are then unreliable (similarity 0.79)
- Historical loudspeaker measurements were non-standardized and largely kept from the public (similarity 0.79)