I tested an ELS-15A a few years ago and it was absolute garbage in terms of sound quality. One of the worst actives I've ever tested. Many thumbs down on my Youtube review, mostly because beginners that buy cheap garbage don't like to be told it's cheap garbage... Spend a little more and get something with a decent warranty. Just before Christmas, Yorkville's YX15P was 479$ (canadian). This is a very decent sounding full range active that will handle most smaller events just fine while sounding good.