APP2 first impressions here...
First, I'm one of the weird ones who doesn't care much about ANC or call quality. All my old wired IEMs, custom and non-custom, had good enough passive isolation that I never saw the need for ANC. My current favorite for the past year or two has been the Grado GT 220. The tips sit deep in your ear canal and passive isolation is excellent. And I just love the GT220 sound.
My wife uses first gen APP and I feel that their sound quality is far below the GT220, especially on the low end.
I listened to the APP2 for a few hours last night and then did A/B testing this morning with GT220 on 2 iPhones. I thought the Grado would continue to be far superior, but I ended up eating crow. They are *very* close in overall quality. The APP2 have significantly better low end response and tonality than the original APP.
The Grado's bass is still more visceral, but I attribute that to the deeper seat in my ear canal and tighter seal. I wouldn't say it's stronger or better bass, but you do feel it more. An example would be on Solsbury Hill. There's a subtle bass drum kick that you hear and slightly feel on the APP2 but feel strongly on the Grado. The Grado low end is fuller and does color the sound profile more. (Interestingly, the GT220 is very different from the Grado house sound of their open-ear cans.) The APP2 are more neutral. Surprisingly, I'd give a slight nod in upper mid and highs to the APP2 as well. I never thought the Grados were sibilant, but I hear a touch when A/B'ing against the APP2. Overall, the APP2 is a much more audiophile-friendly sound while still being extremely fun and musical. I'm surprisingly impressed and a little sad for my poor beloved Grados.
I ended up using old non-pro AirPods a lot for iPad and phone movies due to the ease of use within the Apple ecosystem. I'm really glad the sound quality is so good on these APP2s so I can get the best of both worlds.
A few random notes:
-I'm so used to IEMs that go down into the canal that it's hard for me to feel like these are sealed. They're performing like they are though.
-The Apple fit test for tip size is garbage. I pass the fit test with S, M, L tips. I didn't bother trying the XS but I'd probably pass with those too. Medium feel the most "right"
-They connected very easily with a non-Apple device (Peloton bike which runs Android) and then went right back to my iPhone when I picked it up. Very smooth.
-The speaker and "Find My" on the case are awesome. You'd really have to try to lose them.
-I ordered CharJenPro silicone covered foam tips to see if I can get a tighter-feeling seal