EarthQuaker Devices Passive AB/Y BoxMaker: EarthQuaker Devices Model: Passive AB Y Box Condition: New Description: The EarthQuaker Devices Passive ABY Box is the perfect solution if you cant decide when and where you would like your signal to go. In its most basic form, this passive little box is commonly used to run a single input out to two destinations and lets you choose between using either individually or both at the same time. The most common problem an ABY is used to solve is