Wid, not sure how to respond. Keep in mind at any given volume level the meter was fluctuating voltage numbers very quickly. I was watching the display and trying to right down the highest number I noticed.
So lets say during the heavy passages of a song, I might see voltage readings from 10-15.9 and everything inbetween. I then wrote down the highest value I viewed on the display, so the highest peak voltage at each volume selected. I wish my meter had a setting to store the highest value so you don't have to be so alert.