did some web searches and I’m not sure if I am way off base with this...I’m looking for a very simple volume control that can be placed near a solo performer (like on the floor) so that she can boost or cut the volume on an active PA speaker, without doing it at the board. She is using a digital board, and managing EQ and volume adjustments from an Android tablet. When she performs solo she sometimes needs to boost the overall FOH volume (she uses a single active speaker for this type gig), without dealing with the tablet. She wants to be able to reach down a simply twist a volume knob up or down for fine tuning the FOH volume. The line to the active speaker is XLR. I’m thinking that a box with XLR in and out, that has a volume pot in it would work without adversly affecting the other settings. The FOH line out from the passive mixer would go into this “volume box”, and the line out from the box would go to the active main. The box could be set with its volume halfway up as a starting point, which would then give her the ability to boost or cut some of the volume. Is such a thing sold? I know I could add another small mixer in line, but looking for a simpler and cheaper solution. Thanks!