I am looking to create a display wall from a Dell Precision workstation and use a WX9100. The location of the workstation to the monitors is quite a distance from the actual wall. To make things worse, the wall is a solid brick wall, and requires extra length of the cables to wrap around the studs. I am planning on running 6 HDMI cables to the displays. Will I need active converters for more than 2 passive DP-HDMI adapters, or can I use 6 passive adapters for them? Resolutions will be 3840x2160 on all 6 monitors.