Infinity Renaissance 90 Piano Black

MagicMarksy on ebay.

I've owned a couple of pair of Ren 90's in blonde oak in the past.
Great speakers.

Piano black....ultra rare.

Good luck in your quest to find your parts..

There is a lot of info on infinity-classics.de   
It is THE Infinity go to site.
If MagicMarsky cannot help, perhaps try to locate a pair of the Ren 80's as I believe they use the same EMIM & EMIT.  I had kept a 2nd pair of Ren 90's around for a dozen years or so "just in case".  I never needed them as the speakers I listen to are solid as a rock, so I offed them a couple years back.
I find it odd that you fried the EMIM.  I would look at the crossover just in case it cooked instead.  
Good luck.  -John

proos
I am desperate for any help. I have a very nice pair of Piano Black 90’s. I blew the HE-EMIM midrange and can not find a replacement anywhere

Very nice speaker BTW needs an amp with massive current to get the best out of, if not it could be the reason your Emin voice coil went open circuit, because the amp clipped?
If your up to it they are quite easy to replace the diaphragm on, or there’s a complete one for much more money.
https://www.ebay.com.au/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=Infinity+EMIM+...

It is possible to fix them, if just open circuited with small crack with this stuff,
https://www.repco.com.au/en/safety-workshop-consumables/adhesives-fillers-sealants/sealants/permatex...

https://i.ebayimg.com/images/g/lXsAAOSw7~9gltvL/s-l1600.jpg

Cheers George

thank you all for your input.  I did take the speaker out that was not working.  I hooked another random speaker to it and it worked.  Would that rule out the crossover issue?