Turntable Headphones

Question about connecting plates and speakers?
Ok I have 2 Numark Turntables and a mixer all met, but I can only hear things when I get up hook headphones to the mixer and want to be able to play albums in subwoofers so what else do I need because I do not see any connections Speaker to need an equalizer? i dont even know what I do?
Dishes need for amplifiers. Connect the output of the mixer to an amplifier, connect the speakers to an amplifier, and everything is done.
DJ SWOOSH (NEW JERSEY) USING ONLY 1 TURNTABLE & NO HEADPHONES AT PROVIDENCE NIGHT CLUB