Lowest volume is still too loud
I've tried numerous things to try to lower the volume of my iPhone 13. I got new headphones today and it's way too loud even on the lowest setting. I went to sounds and haptics in settings and put the "reduce loud sounds" slider all the way to the left on 75 decibels. On my MacBook I can lower the output volume. Is there a way to do that on my iPhone 13?
iPhone 13 mini, iOS 16