Sony MDR-EX1000 (no filter) & MDR-EX800ST Impressions
Drove down to hear the latest revision of the Auribus Acoustics Everest and got to hear these too. These two IEMs still get a lot of talk for being single-DD wonders, but I have to be honest: I find them somewhat underwhelming. To my ears, the most notable thing about the EX1K and EX800ST would be their imaging chops. They sound exceptionally open for IEMs - likely more than even the Andromeda 2020 - and it's not at all the forced type of presentation that's the result of frequency response tricks. Layering and staging, that's where the EX1K and EX800ST really shine.
But outside of that, I don't find either of these IEMs competitive for their tonality. Generally, I'd say the EX800ST's slightly more pleasant than the EX1K at the expense of resolution. The EX800ST is basically a warmer, thicker interpretation of the EX1K that sounds somewhat muffled in tandem with a pronounced upper-midrange suppression and a fairly strong roll-off after 10kHz. The lack of air after 10kHz is a problem for both of these IEMs, by the way. The EX1K brings back up the upper-midrange slightly and follows this up with a monstrous 5.5kHz peak in the treble. The result is a double whammy: 1) The EX1K's upper-midrange borders on sibilant, likely due to notes touching on the 5.5kHz peak on some tracks, and 2) the treble generally sounds like chalk being scraped against a blackboard. Grating. I've also heard a lot of good things about the bass response of these IEMs; however, I'm not sure if I can agree with that praise. It's certainly not bad bass - the EX800ST even has a little more impact than it's brother - but it's also not special to the point of which I don't really care to explore it further. Maybe it's because I was A/B-ing them with my IE900, but I expected better on this end.
Intangibly, the other problem with these IEMs is that they don't really sound all that dynamic despite what I've read. Macro-dynamic swings might be alright (and I'm being generous), but the EX1K sounds quite boring, and there's a lot of missing luster to attack that becomes readily apparent when I compare with the IE900. And it's not just against the IE900 either. From memory, I'm pretty sure the Tanchjim Hana 2021 had more pleasing transients than this. Now, to be fair, it's important to remember that these are 10 year old IEMs. When they were released, they likely would have been groundbreaking; they enjoy the cult followings that they do for good reason. I was also A/B-ing them with a considerably more expensive IEM. But in my opinion, the time for praising these IEMs passed some time ago.
Scores: 5/10 (MDR-EX1000), 5/10 (MDR-EX800ST)
Speaking of cult followings, I also heard my first Stax today, the SR-L700 MK2. The tonality on it clearly isn't quite where it should be, but I almost didn't care. Incredible resolution, easily worthy of playing at the top - just
wow.