I mentioned this in a previous comment and I have to harp on it again because it's bloody infuriating.
Don't write "it is said that", or some variation. You've done it multiple times in this article. "A configuration said to extend dynamic range to 124 dB" said by whom? "a technology developed for the company’s in-ear monitor that’s said to reduce distortion and improve clarity." said by whom?
This is lazy, sloppy, misleading writing. Your readers would like to know who said this. Is this someone unrelated to the company who has tested these devices and confirmed these facts? Or is this baseless advertising puffery and you're sycophanticly reprinting?
"HiFiMan claims its nanotechnology reduces noise and improves clarity" is clear and specific and tells the reader exactly how much stock to put into this claim. It's far better than the awful voice from nowhere.
Why shouldn't you write in the voice from nowhere? Here's an example: "It is said that Bob Ankosko is a hack writer who misleads his readers and schills for scam cable companies".