gemmoglock
500+ Head-Fier
Thanks @Joe Bloggs for the reply, much appreciated.
Just to add to it, the quad drivers of the B400 should be no issues to drive power wise? (Sorry new to all this)
Backup and restore sounds fantastic... I wonder if it can tie into an online version of your accounts playlist so you can log in and manage it on a PC/MAC (aka a larger screen) then it can sync back to the device.
Cheers.
In short B400 has no issues because balanced armatures consume very little power. If you are curious head to the reddit r/headphones guide by QuipA at https://sites.google.com/view/quipa/power-calculator and put in the power values of the R3 as 56mW at 32 ohm >> 1.34V. Let me know how your B400s are going, I am eyeing them too actually haha.
For now you can always use apps to manage playlists. I personally like MusicBee a lot.