Taken on Jun 09, 2021 @ 12:21.
About The Setup:
The iPad shown is an 11in iPad Pro from 2019.
The DAC is a FiiO K3 connected via a USB-C to USB-C cable. I recommend the shortest one you have on hand.
The headphones are the Sony WH-1000XM4 connected via the included standard cable (non-remote).
The iPad is set to maximum volume (yes, it will complain about this), and the FiiO is set to about 25%. The Gain is set to High. I had much better luck with this than putting the FiiO at max volume and adjusting the volume on the iPad.