Surprised myself! Interesting I got HD650 mixed up with the original, and that I only preferred it due to the lower bass which indeed is a characteristic. I own a HD6XX and do in fact prefer it without any bass EQ for some music.
I used an Etymotic ER2XR with some EQ to bring it closer to Harman 2019v2 from 20Hz - 3kHz but left the rest as is as I find it too bright to lift the treble any closer to Harman.
Charted the results I could gather though
@MayaTlab and
@LTig you didn't rank all the headphones so I couldn't include you despite you both guessing correctly!
Those who hedged guess (e.g. "not sure, could be 5 or 2" etc.) I counted as "wrong" even if 5 was one of the guesses.
Interesting points:
- Original recording was preferred on average regardless of whether it was correctly guessed as being the original.
- DCA Stealth much more preferred on average by those who correctly guessed the original recording.
- Hifiman Susvara was much more preferred on average by those who incorrectly guessed the original recording.
- ZMF Caldera and Sennheiser HD650, two very differently measuring headphones, were rated similarly on average by those who failed to guess the original. HD650 was rater much higher than Caldera by those who guessed correctly, however.
- Only ones bringing down the average preference of the original recording were myself and
@OnLyTNT . We were also both the only members who solely relied on IEMs for the experiment, and quite similarly measuring ones at that (once you take my EQ into account, see below). We both voted HD650 opposite however (me 1st, them last).