![]() I can get close, but – and this is a critical point – the only way to know that my results are close is to actually compare to a reference, and that reference is an NFS measurement or proper measurement in an anechoic chamber. End result, MLSSA (which is far more accurate than Clio) could not match the resolution of the NFS under any scenario. I am not sure if you were aware, but that Luna you tested was the speaker I shipped all the way to Norway to be measured by a company I 100% trust. I spent a ridiculous amount of time researching and LEARNING more about the NFS, which eventually resulted in a very long but thoroughly enjoyable zoom call with Klippel engineers. It was cause for investigation, not denial. I trusted my measurements but at no point did I claim our measurements were better or that yours were invalid. “Gating” to remove reflections also results in reduced resolution for the entire response measurement, which was why we didn’t catch this initially. You found slot port resonance issues with our Luna and Duo that our measurement system, at that time, did not pick up due to the resonance being extremely high Q. Look, there is no manufacturer with a perfect scorecard such that every speaker is amazing. ![]() They took measurements of this speaker in their anechoic chamber and my NFS measurements of the same speaker not only precisely matched, the resolution and accuracy of the NFS exceeded the chamber measurements in the lower frequency ranges. ![]() I have personally verified both the resolution and accuracy of the NFS by sending a speaker all the way to Norway and calling in a favor to my friends at SEAS. That’s really a shame, that isn’t at all how the NFS functions and the white papers on the technology, while quite complex, are out there in the public domain for anyone to learn.
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