Hi! I bought IPad Pro nad I found that it's not as loud as I thought it will be. A maximum volume is similar to Air 2, maybe even Air 2 is a tad louder. Sound quality is much better on Pro. I read that Pro should be 3 times louder than Air 2. Maybe my Air 2 is louder than other Airs 2? What do you think? Can you compare Pro volume with Air 2? Should I use my warranty?