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Dynaco test record - quad or not?

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Bill Brent

300 Club - QQ All-Star
Joined
Apr 13, 2004
Messages
311
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
 

Soundfield

701 Club - QQ All-Star
Joined
Dec 29, 2011
Messages
745
Location
Essex, UK
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.
 
Last edited:

Bill Brent

300 Club - QQ All-Star
Joined
Apr 13, 2004
Messages
311
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
 

par4ken

500 Club - QQ All-Star
Joined
May 28, 2011
Messages
596
Location
NW Ontario
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".
 

fizzywiggs41

2K Club - QQ Super Nova
Joined
Feb 15, 2015
Messages
4,055
Location
wpg, mb
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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