Except not legal.

Edit, for downvotes: According to the laws quoted in the article, it isn't legal..

>According to Austin’s Code of Ordinance of amplified sound, a business may not operate equipment that produces a sound louder than 85 decibels, equivalent to that of a food blender, from the property line between the hours of 10 a.m. to 2 a.m. And from 2 a.m. to 10 a.m., the sound should not be audible at the property line, according to the same code. 

Being that neighbors are complaining that it can be heard.