I have a pair of APP that I've been using since the beginning of Dec where the left ear fails fit test with any tip (I normally use large). I don't know if it passed when I first got them, though.
I just picked up a second pair that passes fit test with large tips. I tried using new tips on old APP and old set still fails left side.
I don't know the determining factor but the new set that passes fit test have a lot more bass. Can't really notice much difference with performance of ANC but the new set does give my head a more "full" (bit uncomfortable) feeling.
Old APP is on firmware 2C54. New set is on 2B588.
I'll see if there's any difference after new set's firmware gets updated.
UPDATE: New set got updated to 2C54 and still passes fit test on both sides. I continue to have increased bass also vs the previous set that fails fit test on left side.
I just picked up a second pair that passes fit test with large tips. I tried using new tips on old APP and old set still fails left side.
I don't know the determining factor but the new set that passes fit test have a lot more bass. Can't really notice much difference with performance of ANC but the new set does give my head a more "full" (bit uncomfortable) feeling.
Old APP is on firmware 2C54. New set is on 2B588.
I'll see if there's any difference after new set's firmware gets updated.
UPDATE: New set got updated to 2C54 and still passes fit test on both sides. I continue to have increased bass also vs the previous set that fails fit test on left side.
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