This is kind of funny. We've all got 8" coax's secreted away somewhere for a rainy day. Hah.

I have some atlas 8" coaxial pendant mounts in fact. I recall they sounded pretty good (they are packed up now), though I have nothing else 8" to compare to per se.

This spurred me to look up the driver, apparently they use the FA138 driver: Atlas Sound - FA138

Not Altec by any streatch afaik, but I checked the FR to see if they too had a 2k hump. Looks like they quashed in the FA138.