This is my best guess as far as the most appropriate place to ask this. Ok, here is what I'm trying to do. I'm trying to run an IEM setup from the output on my pedalboard. I run my guitar into my pedalboard (which includes pedals, a multi-effects processor and even a rack processor) and then I run it into the effects return of my amp head (as opposed to the amp input bypassing the head's preamp section). It appears that the guitar's signal is so low power and consequently so low volume that I cannot hear it hardly at all through the headphones. I plug the IEM into my computer and it blows me away with volume. Would running the guitar signal (via the aux out jack on my pedalboard) into a headphone amp then to the transmitter of the wireless boost the signal volume?