Genelec has some time domain measurements for 8331A&8341A available here:
https://downloads.ctfassets.net/4zj...l_Loudspeakers_with_Integrated_Waveguides.pdf
Thanks for this! I've been gathering as much info as possible on these speakers for a while, but I hadn't seen this file yet. Lots of detail on the differences between the internals of the 8331A/8341A (speakers A/B) and 8351(A? speaker C) there too, which has been quite difficult to find otherwise.