EV-4 Matrix was also referred to as the Feldman/Fixler Matrix.
I used a EVX-44 back in the day but eventually moved up to a Lafayette full logic decoder. Sometime in the 80's I picked up three EVX-44's (probably on eBay?) and eventually sold two. I still have one NOS EVX-44 in storage - if anyone is interested, make me an offer I can't refuse. For more info, there's this thread: https://www.quadraphonicquad.com/forums/threads/decoder-electro-voice-evx-44.14311/Was EV-4 encoding / decoding any good. I don’t recall any sophisticated decoders with logic ever being released.
I love it when you post these as I go and buy them, some good old Blues arriving on ThursdayMy Latest QS CD
Brownie McGhee & Sonny Terry -I Couldn't Believe My Eyes.
BGOCD407
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