If you read my review of the LG V10, if not click HERE , you will have read that it has a Sabre 32bit Hi-Fi DAC. This means the V10 has a special high impedance mode for headphones from 50-300 ohms.
With 50 ohm plus rated headphones, the V10 turns into a stunning digital audio player with lots of power and volume. It still sounds good in low impedance mode, but it’s worth triggering the high impedance mode to witness the difference.
On XDA Developers somebody developed an app to trick the phone into the high impedance mode. I tried this app and it does t work. It also has other side effects reported by others.
However, there is a much easier way to put the V10 into high impedance mode. This is achieved using an adapter. Being more precise you need a 10 cm 3.5mm Male to 3.5mm Female Auxiliary 4-Conductor TRRS Stereo Audio Extension Cable adapter as shown in the photo. You plug the adapter into the V10 first. This puts the V10 in AUX mode and switches the DAC to high impedance mode. Then plug your headphones into the adapter. I would recommend dropping the volume right down to 15 out of 100 before you play any music as the potential volume in high impedance mode is massive. Just one small note is high impedance mode uses more battery.
I bought a FosPower cable as shown above from Amazon. Including delivery it cost £4.99. Link below. As it came from the USA it did take a few weeks to arrive.