I have just bought hercules starlight and when i put my headphones in i cant hear anything...when i put my headphines in the master slot it works...any suggestions

Hello GerryMac,

Welcome to the forum.

DJControl Starlight headphones output is made for prelistening: the DJ software plays in headphones output the decks you select with the push buttons which have headphones icon:
- To prelisten left deck: activate the push button with headphones icon on left of the master volume rotary button
- To prelisten right deck:activate the push button with headphones icon on right of the headphones volume rotary button