Dynaco test record - quad or not?

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And numerous Phase 4 albums were release in discrete quad on reel and 8-track. If they could do it on tape, why not do it on vinyl? Oh well, history is what it is.
i've only ever found 1 phase 4 quad lp - it decodes best in qs, but there is no indication as to the matrix system used, and it wasn't cd-4 - its a VA compilation called the Quadraphonic world of Phase 4
 
Just to make this completely clear – "Phase 4 Stereo" had absolutely nothing whatsoever to do with quad. It was a purely stereo technique invented in 1961 by Decca (in fact there was even a mono variant called Sound 4 monophonic). It was designed to increase the impact of the new-fangled stereo system by closely miking (and over-emphasising) certain instruments.
A former Decca engineer explains here:
Decca - Phase 4 Stereo
Because the "Phase 4 Stereo" recordings made extensive use of multi-track recording (in order to spot light those specific instruments) there was plenty of scope for remixing them latter. It would appear that the Decca affiliate London records did that some years later, re-releasing a few titles in ‘quad’ format (confusingly) under the "Phase 4 Stereo" banner on tape.

To add to the confusion a couple of producers used the term "Phase 4" in connection with some matrix quad releases in quad in the early days of the format before the terminology and branding settled down a bit - but such use had nothing to to with the trademarked "Phase 4 Stereo" system of Decca.
 
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Just to make this completely clear – "Phase 4 Stereo" had absolutely nothing whatsoever to do with quad. It was a purely stereo technique invented in 1961 by Decca (in fact there was even a mono variant called Sound 4 monophonic). It was designed to increase the impact of the new-fangled stereo system by closely miking (and over-emphasising) certain instruments.
A former Decca engineer explains here:
Decca - Phase 4 Stereo
Because the "Phase 4 Stereo" recordings made extensive use of multi-track recording (in order to spot light those specific instruments) there was plenty of scope for remixing them latter. It would appear that the Decca affiliate London records did that some years later, re-releasing a few titles in ‘quad’ format (confusingly) under the "Phase 4 Stereo" banner on tape.

To add to the confusion a couple of producers used the term "Phase 4" in connection with some matrix quad releases in quad in the early days of the format before the terminology and branding settled down a bit - but such use had nothing to to with the trademarked "Phase 4 Stereo" system of Decca.

right - one had nothing to do with the other - but there were quadraphonic phase 4 releases
 
I just noticed a passage at the bottom of the 4-Dimensional STEREO DEMONSTRATION DISC, in italicised script likely added by Vanguard "Vanguard's participation in this demonstration record as well as that of Leopold Stokowski is an experimental effort designed to stimulate interest in quadrasonic sound".
 
FWIW

In addition to U A using the term " quadrasonic " for all their Q8 releases , Billboard magazine made the decision to also use the term with all their quadraphonic articles throughout the 70's quad era .
There are also other parties (Vanguard i think )who did the same very early on but later used the one we all associate with now.

Also I notice the RCA Q8 sleeves indicate " Four Channel Stereo ".


And here are some pics of Project 3 and others with stereo as well as surround or quadraphonic on their product.




Last pic--
As well as a K L Recording Service with tech notes explaining Dynaquad........from discrete tapes.
 

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