Magnepan LRS was tested: https://www.audiosciencereview.com/forum/index.php?threads/magnepan-lrs-speaker-review.16068/Not sure it’s doable with the Klippel, but I’d like to see some open baffle (Spatial Audio?) and planar (Martin Logan, Manapan,…) speakers measured. Would also like to see some Monitor Audio products. I’m sure the planar speakers are not possible given the difficulty and expense of shipping them (And perhaps getting them on the platform)
I was offered an electrostat but it was just a bit too tall for Klippel.
I have more Martin Logans to measure but they are not the panel speakers (likely designed by the Paradigm group anyway).