If luck continues, I might have a bead on a pair of the above.
I don't think there is a K510 on top however, I've debated the merits of adding one (this would be used for outdoor movies)
Anyone know the parameters that would be used for the active settings? Do you have a TLX file for a Dx38?
I believe the setup would be MWM bass bins, XII midbass unit, K402 (K1133 I think)
Is there a passive design for this?