Sony XB series Bluetooth speaker GTK-XB60 how to adjust the volume, the maximum can achieve what kind of effect?

Sony in order to prevent the Sony XB series Bluetooth speaker GTK-XB60 volume is too large, deliberately GTK-XB60 total volume to 50%, the user if you want to open the volume cap to the maximum, you can download Sony's official Music Centre App in which to adjust the GTK-XB60 in the opening of the maximum volume cap, the sound is really big, has been big enough to the kind you Neighbors will come knocking on the door to say you're noisy to their son's homework, only in the square and the park inside the open position have the courage to open its sound to the limit, otherwise square dance aunt will also say my audio affects their dance.