I wouldn’t say it’s exactly neutral. IT04 is more fun and engaging because it is rather fast. But the decay of notes are fine. IT04 feels open which kinda helps in the separation. I’d say the mids are better than IT01. I can be wrong but I think there are 2 mid BAs because mid is the bread and butter of most music. IT04 is more unique compared to IT03 and IT01.I have this problem with their IT01. Was wondering if their IT04 would be a more neutral tuning with better mids, or if it was the same as the IT01 but better. What signature does the IT03 have?
IT03 and IT01 probably have similar sound signature. IT03 is more precise leaving a better separation compared to IT01. IT03’s vocals are not as distant compared to IT04 though.
All of the IEMs have really nice bass. I mean, their DD is really good.