Electrovoice 18" Woofer: smallish Magnet; only 2.3 ohms?

I’ve been watching some electro-voice drivers, from their Vintage Model E-V Six, drawn by the 18" woofers,
original specs say 8 ohms

https://products.electrovoice.com/binary/E-V%20Six%20EDS.pdf

here’s a pair of the woofers

https://www.ebay.com/itm/254646609730?hash=item3b4a1ee742:g:y-gAAOSwk19fBH44

1. 2.4 OHMS? My vintage drivers, Crossover, and L-Pads from that era are nominal 16 ohms. I never measured them.

2. Smallish Magnet on 18"? My 15" paper woofers, 15W 37 lbs, have much bigger magnets. (the 18" are 1/2" thick styrofoam).

https://products.electrovoice.com/binary/15W,%2015BW,%2015WK,%2015BWK%20EDS.pdf

https://www.ebay.com/itm/284098370766?mkevt=1&mkcid=1&mkrid=711-53200-19255-0&campid=533...

3. Mine is 16 ohms, I know they make a 8 ohm version, yet that one shows 3.5 ohms???

Help me avoid trouble by ignorance please,

thanks, Elliott

fiesta75 Details Discussions Posts This discussion Message User 1,378 posts 07-17-2021 at 09:40pm Copy Comment URL Report Comment Edit Delete For me, the magnet is too small to control the mass of the woofer cone well. As far as dc resistance, also too low. I've never seen any woofers rated at 8 or 16 ohms read 2.3 ohms dc. I'd be very leery. Unusually low resistance could be indicative of a partially shorted/damaged VC from excess driving. Are you saying your 8 ohm woofers read 3.5 ohms dc?
fiesta75 Details Discussions Posts This discussion Message User 1,378 posts 07-17-2021 at 11:11pm Copy Comment URL Report Comment Edit Delete Yes, I see what you mean about the magnet size. One thing that shocked me was the last link of the 15W’s, the WK & BWK’s models say 3.2 ohms dc for a 16 ohm impedance. Maybe a misprint or I just learned something new. Not seen any 16 ohm speakers to read below 5.6 ohms or so dc in my 40+ years...?