Hey John - yes, I'll get them there. And I'll be smiling!

Scott. Right on. Flat just does not sound right. That's one of the reasons my "home made" Altecs sound better. I tuned the passive x-over by ear and pulled the mids down. Doing that makes listening to them close up a lot more pleasant. I just wanted to start the A7s as flat as possible for a reference. Doesn't sound like they will end up there.

I'll post x-over schematics, photos and impedance curves tomorrow for the technically minded reader - and those who just like pretty graphs. =)

Here is the stock N-501 crossover schematic. There is a typo in it. That should be 3mH, not 30! I'll revise and repost.