@fetguy I looked at units like these, but I am not sure they are as accurate as I would like? I know a guy with the best testing/measurement gear and expert at driver and speaker design. I will use him. Thanks for the link however!
@jcarcopo. Sorry you feel this way. The improvement was not slight, but transformative for me. Cost me far less than the SE version and I am confident they at least compete with the SE. Most confident. Also, think about it this way. If you hold to your thought, then the amp or preamp, or source, or anything in front of the drivers really would not matter or be worth upgrading. We know this is not true of the DI speaker.
These parts can be heard through the DI.