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
elliottbnewcombjr
rodman

good thinking, my son’s suv is gassed up!

I wrote EV, let's see what they say. I also asked what currently available 18" woofer could be substituted for the 18WS.
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Have a laugh: I just instantly schemed this: mix 18" WS with my existing 15W, like adding a pair of 18" subs

new wide rolling box, like a square or round pedestal. fit’s width of the 18WS facing/firing down (avoid eventual surround sag/voice coil rub). big hole in the top

sit my existing speakers on top, 15W; mid horn with it’s L-Pad; T-350 with it’s new L-Pad.

cut matching big hole in the bottom of existing speakers, so air spaces are joined to around 11cf

low feed from existing crossover: split very low out to 8 ohm L-Pad to 18WS, add 16 ohm L-Pad for 15W, now 4 L-Pads each side (hear lewm screaming?) and the joy of getting L/R to match.

Oh yeah, I have my existing rear port I could mess with too.

Saves a lot of carpentry. All Vintage, just a Late Idea Electro-Voice never came up with.
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It needs a name, anyone?
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Put a new modern 18" in the Model EV-Six boxes, sell them with no real concern about the nearly non-existent 18WS.

did I recently say "too clever" somewhere?




       btw: I still have a pair each of ST350As (w/new OEM diaphragms), 1824M drivers, 8HD horns, X8 and X36s (all 8 Ohm stuff), left over from the shoppe.

       Always did my own x-overs, but: those from EV: I just couldn't throw away, in good conscience

       I've been hoping to have another room*, large enough to merit the 15" Three Ways, that I used to build, to do Hard Rock justice.            *Doesn't appear likely!

       Speaking of which: if you really want to step up your game, with 8 Ohm 15s: get a pair of OEM, EV Sentry III woofer kits.     Everything will fit your existing 15W frame and magnet structure (NOT the 15SW), but: you'll have a much longer VC throw (more linear excursion), foam surround and less distortion.
rodman

I am only finding foam repair kits, you are referring to voice coil, cone, surround correct?

source?

I’ve got a spare 15W ready to go, and a 15W needing a new cone right now that I will eventually repair. I have a 15W coil/cone/pleated fabric surround kit ready for it, but trying this sounds interesting.

Of course I've got spare horns ready, and they can be more readily found in the future by my great grandchildren I hope!!!
rodman, all

I just noticed, that pair of EV-Sixes near me: it's a pair of identical Mono Boxes, they are not mirror images like Stereo Pairs are.

https://www.ebay.com/itm/154513478054

clearly it's hard for me to keep my eyes off them.