I only maxed it out on PHONE_EARCUPLE in both files attached.

And I also maxed out PHONE_HANDSFREE in the first file only I have not tested the effect of that yet so I didn't bother on the second file. PHONE_HANDFREE was already near MAX also.

I didn't want to max out the speaker phone (yet) because it's max was set very low and I find it tends to distort already at VOL5 and I didn't want to risk blowing the speaker. But I will probably play with it.