This is my silence practice rig, it is an mxr heaphone amp (layout by mirosol) and a runoffgroove Condor Cab Sim in one 1590bb box. Each one has its own input and output jacks, but I used switched jacks and the output of the cab sim is internally connected to the input of the headphone amp when neither of them has a cable connected. This is not one of my best looking builds but its the most used one.
I did my own layout for the Condor, and included a switch to select between condor and marshall simulator. I used a bicolor led.
