Planning to start using my DX150 as my everyday carry DAP and leave the more expensive DX200 and IT04 for home listening.
I took a listen to DX150 with AMP7 and IT01 last night.
Bear in mind that the AMP7 has only had maybe 20-40 hours burn-in.
I found the combination to be a bit bass-heavy for my liking.
Others may find it wonderful of course, that's just my preference for a more neutral reference sound (I do love bass, but done in a way that doesn't affect the rest of the sound signature).
I suspect the reason is because you've essentially got 3 separate components all tuned to have a slight power and prominence in the bass region; that's been the reported tuning of the DX150, IT01 and the AMP7. So putting them all together could indeed lead to overkill or heaven for some, haha
Well, I've now changed over to AMP3, plugged in a pair of IT03 with CB12s cable and it's sounding *very* close in sound quality and sound signature to my DX200
I'd love to sit down and compare AMP6, 7, 3, 4s, and 8, not to mention the different cables and IEM's but there simply aren't enough hours in the day lol.
Every now and then, I find myself with a bit of spare time to kill and do some A/B testing between a couple of AMP's, IEM's or whatever.
If anyone has any requests, just let me know and I'll see what I can do.
In the meantime though, as
@Paul - iBasso always says, "Enjoy the music".
Which is exactly what I'm doing right now