I have actually been running my V4b and a pair of 210AV cabs on stage or an 810. The V4b has a parallel -15db input, I am using it as an output to Monique so that I can use Monique as a DI only. Changes at the amp including gain settings have no effect on what Monique sees. I can then dedicate Monique as my DI signal, I am setting the XLR out on the back with the knob completely on and everything on the front is pushed in, so no boost. This allows me to separately dial in my stage rig and FOH.