FOMO & Amir talk speaker measurement

[Chris]

I can't recommend strongly enough that people should watch this video walkthrough of how ASR measures speakers and their meaning. It's long so watch it in a few chunks. I learned a lot.

[speakertom]

I have never taken the time to read many of the ASR reviews, but this video was outstanding. Amir really gets it. He not only understands the importance of measurements but as much as can be said the relationship of those measurements to what we hear. It was interesting that he reinforces the notion that tonality is of utmost importance. To go one step back, tonality is simply the levels at each frequency. That high sensitivity of the ear to level differences extends not only to tonality, but anytime the levels are different. You can take two devices that have the same tonality, that is frequency response, but play them back at two different levels and the sounds will be different. That is why level matching is so important.

Another thing he emphasized is that the off axis response of the speaker should follow the same shape as the on axis. To again go one step further, as I have said many times the radiation pattern of the drivers should match at the crossover point otherwise the off axis curve shape will not match as you go through the crossover range. For example if both drivers are omni through the crossover range, the off axis measurements will have the same shape. If not, they will be different. Great interview and definitely worth the time.