14 ohm 7” midrange driver

The tweets/mid-woofers are special/custom per the Stereophile review.

https://www.stereophile.com/floorloudspeakers/297/index.html

DeKay

The driver has a 14 obm label on it and ProAc said they don’t have any anymore.

Does anyone have creative ideas that will allow me to not recycle these speakers?

I briefly considered an in line circuit to bump up the impedance but causes issues with power and sound quality, from what i’ve read.

Talk to Masisound and ask them if they'll measure the DC resistance of an 8535.

8535 is about 14ohm at the crossover point for your speaker. 

I was just looking at the same for my ProAc Studio 200s.

Don't see my 6 1/2" mid-woofers, as they are also marked as 14 ohm.

Did you find if the 8 ohm were correct for your Response 3.8s?

The other option I was going to look in to was Millersound in Pennsylvania.

It looks like they may be able to rebuild drivers....from re-cone to re-wire voice coil maybe?