One more thought I forgot to mention. You don't need to be able to blow out candles on a table in the back of the room. Just enough sound to cover the dance area and the rest of the room will be able to hear the music at a comfortable volume.
good luck
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Bill in SC --- Roland BK9 (2) Roland BK7M, Roland PK5 Pedals, Roland FP90, Roland CM30 (2), JBL Eon Ones (2) JBL 610 Monitor, Behringer Sub, EV mics, Apple iPad (2) Behringer DJ mixer