Quick off-the-top-of-my-head real-time unedited impressions of the HEK soon after arrival with an old time-life 1970 CD I downloaded.
I am using this EQ which I found to nicely mellow the high treble, so take that into account of course:
12 Khz: 0.4 db cut
14 Khz: 1.5 db cut
16 Khz: 3.1 db cut
1. The music seems just to fall out of it. It's the sonic equivalent of a very comfortable shoe that fits just right. I just want to lean into the music and it draws me in.
2. No drama or pain or wincing or fatigue or shout-factor even on tracks that I know can cause this (Jackson 5). There is no fear with the HEK, but it's not boring and it draws me in.
3. I can't call these dry or liquid, just down the center line.
4. Bass is deep, but a little lumpy, not super-detailed bass, but nice very pleasant musical bass that is not overwhelming. The bass reminds me of my Grado GS1000e, extremely pleasant and just forceful enough. The HEK bass is deeper and slightly more detailed and better integrated.
5. Vocals have nice texture and detail without screaming or shout. The best Eddie Holman Hey There Lonely Girl I can recall. Projects well, but not painfully over the top like I have heard.
6. I do not want to take these off and stop listening. Addictive after 10 minutes. A good sign.
7. I do however, miss somewhat the extra punch and insight and push of the LCD3-F on Spill the Wine by Eric Burdon.
8. However, It gets Venus by Shocking Blue just right, a perfect balance of impact and pain-avoidance.
9. A great companion to my LCD3F, which seems similar but the Audeze falls on the side of midrange/vocal highlights.
10. Bass seems to be tightening up. Suddenly startled by No Time by The Guess Who's bass line. Deep and satisfying.
11. A very different sound from Stax 009. Stax is super transparent like nothing but air between you and the music. HEK is still a conventional transducer sound, as is the LCD3F.
12. I like the way the HEK cures these old harsh recordings.
13. Stax 009 bass not as deep but definitely quicker and more detailed. The HEK bass is a foundation, a more generalized but very pleasurable lower floor.
14. Moody Blues Question is another track that these phones are just super-good with. Bass is just hard hitting enough and these phones keep up with the fast pace. Justin Hayward's vocals not silky but somehow sound right.
15. I feel like the HEK is not pushing the music at me, like I have to do a little work to concentrate, but when I do, it's all there. I guess this sounds paradoxical. In contrast, as much as I relax with the Oppo PM1, I feel there is some treble or other detail that is missing in action sometimes.
16. Listening to Joe South - Walk a Mile in my Shoes. Just carried along with the flow, but I think the vocals could be more forward. I'll give the nod to the LCD3F on this track. But I still want to lean in and enjoy it.
17. This is a very different sound to me. It's curing bad recordings by walking a line. On The Band -Cripple Creek, the vocals are recessed but not miniaturized or lacking in detail. The dual vocals sound like 2 people.
18. I usually fuss with the volume control a lot, and somehow I just set it and forget it. The detail comes through even at lower levels.
19. Guilty Pleasure: Mungo Jerry In the Summertime. Again, pure pleasure with the HEK, no overhyped percussion or instruments to annoy me as usual, like an old AM Radio but with with lots of substance and insight. Just carried along.
20. That last comment sums up the HEK on first listen. I'm just carried along for the ride, not plinked/plunked/slammed/clubbed/shouted at/screamed at, but still the music is there. I really like these.
21. These do not sound a lot like other Hifiman phones to me (like my 500 and 560). They are more conventional, more pushy and less neutral, with emphasis of particular frequencies. I was not expecting this.
Thanks for reading my de-briefing. This is not meant to be a review, just spontaneous reactions with these things on my head.
My system :
Windows desktop w/Jriver (solid state external drive) --> AQ USB cable --> Chord Hugo --> Stealth ICs --> Rudistor RP010B amp w/ Shunyata Anaconda Alpha power cord into wall --> stock Hifiman balanced cable --> HEK.