For those who think the volume is not loud enough on the nexus 7, download the free app called Music Volume EQ. Open the app and click on the EQ button, this will go to the equalizer screen and you have to set the equalizer to "ON" and move all the 5 bars all the way to the top(move it to +15) and then that is it. You can close the program and keep it running in the background. I have not noticed any battery drop with it. It improves the volume alot. No root required.