RedditAudiophile

AppleInsider said:

This image was incorrect and is very misleading.

On top of the incorrect measurement method, please read the additional critique.

The experimenter seems obsessed with that graph which they claim shows a very flat frequency response. They even say, further down the review, that it's an "almost perfectly flat speaker". Mmm. I opened that same measurement in REW and here's what I get (with the same 1/12 octave smoothing as the above image): https://i.imgur.com/3nHZimq.png

Doesn't look as nice doesn't it? That's because of the scale, you see. It's the ages-old trick of messing with the vertical scale to make things look flatter than they really are. In the screenshot that the experimenter posted, the interval between ticks is 10 dB. That's enormous. Almost anything will look almost flat at that scale.

https://www.reddit.com/r/audiophile/comments/7wwtqy/apple_homepod_the_audiophile_perspective/du5j2hk/

This is the same data with adjusted scaling:

Theorem: any frequency response curve will look flat if you zoom out far enough.