Minimally choosing better colours. Psuedo 3d shaded greycale maybe. But there is a lot that can be done with the huge amount of data the Klippel system must generate. A tool like Bokeh brings an entirely new aspect to the game - you can make 3D dynamically interactive data presentations that are rendered in your browser.Those psychedelic, LSD inspired, infra-red heat map style representations are bad enough, what have you got in mind?
I suspect that as more speakers are tested we will start to actually be able to do more than just test and rate them. There will be new insights generated. Getting into the data is a huge part of doing this. The site's name is Audio Science Review. Time for some of that science.