Apparently, there's a new updated version of the HD650s now called the HD660. It has nearly the same sound except with more subbass and painted all black.
Edit: Added in "Apparently,"
Oct 8, 2017
tessierpg
Oct 9, 2017
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JishengOkay the story origins from a reliable source
tessierpgI wanted to post about this here yesterday but there wasn't any images to back it up until today. It's the second post over on /r/headphones now.
JishengYep, this is currently the big news on several headphone sites. If it's true would also go a long way to explaining why Sennheiser has recently been so willing to dilute the 650 is such a big way.
SomeTechNoobI checked pricing history on Amazon, looks like the deep discounting only happened around the time of the late 2016 drop, so suspect that Massdrop has had a bit of an effect here. Also interesting to see that the price did go back up to 500 a lot of the time.
Back up to 375 at the moment though.
Edit: Added in "Apparently,"