Weird as it may seem, the magnets in the 2241Hs in my Ethyl Mermans are out of phase! No wonder I could never get them to phase correctly using the terminal colors.
I confirmed this using a compass. On one of the 2241Hs the negative needle on the compass points toward the woofer from the front and vice versa from the back. The two AlNiCo "2235s" in the L200 cabinets are also like this. But the magnetic polarity on the other 2241 is reversed! That's just crazy!!!
They are/were wired in phase using a battery to set polarity rather than terminal color, but I wonder if this would have any other effect. Weird!