Good news is that I have, in great condition, a vinyl copy of The Doors' "Best of" in Quadraphonic sound (4-channels vs stereo [two channels], and previously mono [one channel]). The bad news is that I'm about 40 years late for quadraphonic sound.
The Quadradisc fell into my hands after I purchased it as it was described as DCC vinyl (enthusiasts consider these the best-mastered Doors pressings). I was alternatively excited when it actually turned out to be in an impressive 4-channel audio format that existed briefly in the 70's called Quadradisc aka CD-4. 4-channel sound was short-lived, but still considerable today in quality for the formats that were done right.
The problem is that the equipment needed is more than the 4-speakers to run this setup in full discrete format, including a demodulator. Since I don't plan on finding such devices for one record, my copy will remain downgraded to the plain but compatible stereo format. I've heard that this album was transferred to a digital copy in quad sound via Reel-2-Reel, if anyone can confirm this please let me know.
In the meantime I will hunt down the remasters that were released much later on CD-A (full surround) sometime.
