OldDude04
Headphoneus Supremus
Come to think of it, i was getting distortion at 1-2 o'clock (idsd) when I was using Equalify for spotify on my pc. Might be a combination of things on your pc setup. Only thing I can suggest is try Neutron for iphone. If that doesn't work, then I don't know.
This ^^. I use Neutron on my phone and tablet.
Also, @AIPkw I use EqualizerAPO for my PC, maybe that would help.