Altec 9844-8B

[Zilch]

OK, so conduct all the measurements with the N-800-F plus those components? No measurements with N-800-F alone?

Gotta do both to know what's happening. Again, keep good notes so you can follow it later.

That's 1st order compensation filter, yes?

Dickason calls it a "Contour network" (Loudspeaker Design Cookbook Fig. 7.155). Operatively, it's a response-shaping step filter. There's a way to make it adjustable, and it becomes the "T-filter" used by Altec in Model 19 and others:

http://home.earthlink.net/~jmarkwart...1201-8aRev.pdf

We're setting it to "Max" here, is what....