Hi all:
Happy summer. I recently unearthed and dusted off my A8 clone cabinets I made 4 years ago, this time fitting them with 416-8C's, 807 green drivers (fitted with 23744 8-ohm diaphragms) and N1201-8A crossovers.
My earlier components were: 416-8B, 802-8T, and N1285's set at 1200 Hz.
The system synergy is more pleasing than the earlier combination. So much more balance and less in-your-face highs and mids, though that could also be the less-efficient (smaller magnet) HF driver.
I have used the N1201's in A7 iterations with very pleasing results as compared to the N1285 at 1200Hz.
Altec used the N1201 in some latter-day A-7's (late 70's) as I saw in old ads on line-I can find them on my hard drive if anyone cares.
I recommend the Model 19/N1201 network to anyone for home hifi Altec bass reflex listening.