Use this type of adapter for converting a 2.5mm male audio jack going
into your power box to use with a 3.5mm audio jack lead wire or accessory using a 3.5mm male plug-in wire. It has a 2.5mm male end that pugs into the power box with a 3.5mm female on the other end. Some of the popular power
boxes, such as Rimba and Zeus use a 2.5mm entrance into the power box.