The ATR...ooohh the ATR...
I was ready to write them off as a loss, albeit not a big one, when I listened to them straight OOTB. They sounded muddy to me, lacking energy and clarity. I didn't like how they sounded, simply put. It just sounded inferior in all sorts of ways when I compared them to the ZS3 that I received on the same day, which to me sounded more energetic and engaging. There was plenty of bass on the ATR, but it was loose...weird sounding. I can't really explain in detail.
But now, after 26hrs of burn in with pink noise...the ATR has transformed itself. They sound awesome now. Literally, night and day. The way it sounded OOTB and after burn in is so vastly different that I can scarcely believe it. Yeah yeah, it might be placebo, it might be my brain and ears getting used to the sound...but I don't know..today I had a short listening stint with my MeeAudio M6 Pro (a $50 IEM) and after about an hour I took them off and found my hand reaching for the ATR instead. Even my MeeAudio Pinnacle P1 is spending a lot more time in the drawer these past few days.
I won't say they sound perfect, they don't. But they're far more likeable to me now. Bass sounds tighter and more well controlled. Mids have come forward and not recessed as before. Vocals, especially female, sounds sweet. Treble is ok, not harsh, not sibilant, just fine. But maybe decay is not as good as higher end IEM's, and certain lower frequencies sounds off...the bass hit in Lorde's "Royals" sounds a bit strange. Soundstage and separation is good, not the biggest nor the best (for those I reach for my Grado SR125e), but clear, discernable and slightly airy. Overall, they're more energetic, engaging and fun to listen to now.
Build quality isn't that great either, a step down than the ZS3. Especially the cable, it's so thin and tangly. Microphonics is kinda bad, when walking and moving it gets to you. And I wish they used a detachable cable and a memory wire component that hooks over your ears like the one on the ZS3.
Comfort is great, no pressure pain nor pain anywhere. Although after a while the plastic weight dangling down from my ear lobes do get noticeable. And too much movement can dislodge the cable that goes over my ears..so these are a no-no for sports.
The stock silicone tips also made my ear canal itch something fierce. They're also rather stiff. I'm now using single & double flange stock silicone tips that came with my M6 Pro.
But really, for a $5 IEM I can't expect too much can I? Even the above felt like too much nitpicking. I freaking love the ATR now. It's a good candidate for an IEM you can just bring with you anywhere, that you won't be too worried about and that sounds amazing with great comfort.
Seriously, I've never been a great believer in burn in, and before this I've never burned in any earphones/headphones as fervently as I did with the ATR. I don't know why I did it, but maybe I sensed some potential with the ATR, so that's why I proceeded with their burn in. But now, I think I might burn in all my future purchases, and also those that I already have..especially these cheap chi-fi IEMs.
Now, onwards...I plan to buy the ATE and ATE-S next, to see how they sound in comparison. Oh, the joys of cheap hi-fi stuff. Thank you KZ!