Headphones Hookup Fishman Loudbox Mini

[zeeway]

I play in a gospel group that sometimes has too many guitars, and I cannot hear my guitar to make sure my sound is what I want. I would like to hookup headphones to my Fishman Loudbox Mini as a monitor, but for output I only see a three prong plug labeled Mix D.I. Output. Any hints on how to hookup headphones in this situation?

[zeeway]

Whoops - found a set of posts on near the same topic. Please disregard.