Yup. I guess the old images were just placeholders.
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Not that I don't enjoy a good photography discussion, but I'm really happy we're back to audio again. I take all the blame for side tracking the discussion earlier. Sorry, guys. The iPhone measurements, however, are still low enough to be inaudible. I wouldn't fret, and never have fretted, about using one as a source. Driving a 600ohm Beyer in my experience is a no-go, but it sounds fine with my Grados. That's my preferred combo for listening to music before I goto sleep, for practicality reasons. The only thing I feel like I'm missing compared to having them amped is jump factor, which is something I have zero problems sacrificing during bedtime.
Were any of the people you talked to in this video?
Modern ipods have improved quite a bit. Going back to first gen ipods, you can see the second harmonic was -75 dB in this review of the first product (-3 dBFS into 150 ohms)
Modern ipods have second harmonics around -95 dB under much tougher conditions (0 dBFS into 32 ohms). You can also find plots that show a 2010 vintage ipod was about 5-10 dB worse in terms of harmonics.
I think the noise floor of modern ipods is much better too.