What are the differences between the PA319 and the PA159 speakers?
The non-powered PA319 speaker is 30 watts and uses AC as its power source. The PA159 is a 15 watt, battery-powered UHF speaker. Both speakers have 16 frequency channels that enable them to be used as wireless receivers from the PA919 and PA919SD as well as with other PA319/PA159 by receiving from the same wireless mic – providing extra speaker support.