I never said you had asked Ben Lilly about it, but here is the latest response you got from their head of sales representative in the U.S., Brand Lunde, when you asked him for measurements for their subwoofers. He gave you a pretty straightforward answer on the reasoning behind their decision not to publish measurements, and I'm quite sure you have asked him about it a few times before that.
If you want an answer from Ben specifically, I suggest you send him an email asking him about it. Maybe you get a more satisfying answer from him, or maybe you can convince him to publish their measurements on their website, now that they have a Klippel NFS that should be able to give comparable measuring results to other manufacturers who use the same type of measuring device.
I would personally love to see their Klippel NFS measurements of all their loudspeakers.
View attachment 536748