Picture or didn't happen: This legal drug arrived at my place today. I could finally convince myself for the following reasons: (1) I need a summer pair of headphones; (2) My b-day is coming. Wanted a little special gift for myself; (3) F*** that's too beautiful to pass.. I'm not immune to "limited" marketing, either.... (But more fundamentally, HF3 and RS2 threads along with a profile post made it happen...) Associated posts in this thread Distortion and spectrogram: https://www.superbestaudiofriends.o...nts-reviews-and-impressions.9627/#post-310220 Subjective assessment: https://www.superbestaudiofriends.o...nts-reviews-and-impressions.9627/#post-310388 Amp pairing: https://www.superbestaudiofriends.o...nts-reviews-and-impressions.9627/#post-310420 Speed shootout: https://www.superbestaudiofriends.o...views-and-impressions.9627/page-2#post-310660 Vocal shootout: https://www.superbestaudiofriends.o...views-and-impressions.9627/page-2#post-311108 I'm posting measurements first, as I immediately noticed I had to measure today -- otherwise I would not be able to do forever. Sounds holy-shit-oh-my-god-homerun-good to me. Subjective assessments to come later, but here are my quick thoughts regarding measurements. Note that I'm using the first version of sbaf compensation curve and untweaked EARS. Moreover, they're originally developed for circumaural headphones. Applicability to supraaural structure is largely unknown although I'm assuming decent compatibility. Small dip followed by small peak around 260 hz is caused by leaks. With real skin and skull curvature, I couldn't hear anything strange there. Also with a better seal with real head, low ends extend much further. Perceived bass quantity (if not quality) around 30-40 hz is similar with what I remember from SR1a. Not bass heavy by any means though. Gradual peak (by 4db) at 2.1 khz seems a mixture of supraaural measurement artifact AND grado coloration on lower highs. I don't hear peak that much, but presence of every instrument sounds a little exaggerated. Saxophone bites a little stronger than I used to hear. Hemp is very, very sensitive to placements (particularly for 10khz and above). Not surprising at all for this transducer structure. Is this really Grado? Even considering F-cushion effect (Grado seems to call TTVJ deluxe pads this way), I've never expected this level of polite and refined highs from Grado. Can't compare to HF3 or RS2 with TTVJ-DP (haven't heard) but everything I am hearing now is shocking enough to destroy my long built prejudice on Grados. Allow me a few more days to collect my thoughts on subjective listenings. Meanwhile, maybe @pure5152 can chime in. For FR comparison, I'm pasting my 650 and 600 stock measurements (same measurement rig, same compensation) below: FYR, currently hemp is driven by Schiit Magni 3+ (why did I sell asgard 3? damn..). Measurements taken with Topping DX3. PS. I don't smoke. Probably my EARS don't smoke, either.