I surely have seen 804's/806's in the Frazier blue with Frazier decals.

I don't recall ever seeing an Altec cone driver of the same convention.

Without being disrespectful, i would opine that Jack Frazier subscribed somewhat to the PWK school of economics where the sourcing of drivers was concerned, and then tried to make the most out of them via cabinet and horn engineering.

They certainly used EV drivers in the later and larger Fraziers like Texans. The Frazier F-1277 woofer is a perhaps modified, perhaps not, EVM-12L.

This is a Frazier X-15 with an Altec compression driver and CTS or Jensen woofer:

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