Quote Originally Posted by bowtie427ss View Post
Careful AB, his internals are date coded 1974, and use "pipe and plate" alnico motors. 9849-8B uses all ferrite motors, introduced prolly sometime in 1979-80.
Bowtie I'm referring to the enclosures he has there.Although it says 9849A. It looks like a 9849-8B to me,they are ported cabs.

WRT the internals it wouldn't be the first time that Altec speaker systems had other internals than what it was supposed to be ! Where are you seeing date codes on those drivers ?

In the Altec Ling or LTV era is when there was the most discrepancies IMO.The 414 is definitely in the Ling era.