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Old 06-08-2019, 06:16 PM
 
Location: Somewhere flat in Mississippi
9,467 posts, read 9,341,729 times
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It was trendy for a brief period in the 1970s.
https://en.m.wikipedia.org/wiki/Quad...rent_situation
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Old 06-08-2019, 09:13 PM
 
Location: Aurora Denveralis
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As Travis McGee put it, "I never had the urge to stand in the middle of a group of musicians. I want to stand over here while they play over there."

Remember the fad well, though. The best units had a little radar-scope balance indicator.
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Old 06-09-2019, 05:30 PM
 
Location: Somewhere in northern Alabama
17,739 posts, read 53,869,694 times
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I remember it, and thinking at the time that it needed to be octophonic to describe a cube for a full effect. I heard a couple of setups at a local stereo shop, but they were way too expensive for me. I then used a main stereo amp and a separate stereo amp with a reverb input, and was able to get an effect of a larger hall and slight sense of more immersion. IIRC, I also had a small color show circuit. It was all crude but fun.

Even before it came out, I had access to technical material describing the Fantasound system, which used three tracks, eight speakers, and a switching system that moved sound around 360 degrees to give a full immersion effect for the movie Fantasia - back in 1940. Marty has a copy of some of the tech material on his widescreen museum website:

FANTASOUND*

If that is too complex, wikipedia has a summary:
https://en.wikipedia.org/wiki/Fantasound
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Old 06-10-2019, 08:28 AM
 
Location: Maryland
1,697 posts, read 535,008 times
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I remember hearing about it but never dabbled with it. I had (still have, in fact) a Dynaco Stereo 120 and PAT-4 preamp. IIRC, Dynaco had some way of wiring up more than a stereo pair. I don’t think it was Quadrophonic but it seems like it had to do with sum and difference mixing of the two channel signal.

Edit: I think I remember now that this was designed to provide front and back fill channels, playing signal that was found in common in both L and R channels, so not quadrophonic but a 4 speaker arrangement. If anyone else remembers this and I’ve got it wrong, please correct me.

Last edited by LesLucid; 06-10-2019 at 08:51 AM..
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Old 06-10-2019, 10:37 AM
 
Location: McAllen, TX
3,496 posts, read 2,350,245 times
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I do, probably from around 1974. On LP and 8-track if you can believe that.

I remember this.
https://www.discogs.com/Black-Sabbat...elease/4580919
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Old 06-10-2019, 11:15 AM
 
Location: Aurora Denveralis
8,082 posts, read 2,816,523 times
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They tried it again much more recently. Sony had a 5.1 audio system using DVD technology. SACD, I think.

Played the sample album that came with my disc player, thought "That's nice," never considered buying another disc.
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