Pazap

What is the most effective / pro option for sending HX Effects out to Universal Audio Ruby (into the mixer / recording device) AND to my VOX AC4 (used as a stage monitor and / or mic)? It seems that I have to select line OR instrument so I did not manage to send two different signals out. Is it something that can be achieved with HX Effects or should I buy an external device (e.g.: a line splitter) and use the "line" option? Many thanks in advance for your guidance!