I was working for Radio Shack when EV came out, we didn't even call it quad for another year or so...just "four channel sound".
Anyway, Fisher built for Allied Radio Shack a nice EV-based receiver, model was ARS-747. Never seen another EV-only receiver since then, has anyone else?
We used an EV version of "Enoch Light and the Brass Menagerie" to demo the unit, and I discovered early on, as has been posted by others, it did as good a job of synthing quad as decoding quad! Nice receiver, though, typical Fisher of the 70's. I saw one on Ebay a month ago, but bid too late.
Oh well, just wanted it for memories of those first glorious days of Quad!
As pointed out, EV-4 has NO weird phase shifts, so building a decoder for it is quite cheap and easy, no fancy j-filters needed. I have a few EV recordings, and play them through a Hafler (sort of) hook-up in my car...not bad!
Thanks for letting me share memories of when it all started,
regards from all corners,
TB