Surround Master Decode - SQ and QS Encodes of Same Album

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kfbkfb

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In some cases, a Quad album might be released SQ encoded in one region and QS encoded in another region, I'm wondering if the same album (SQ and QS versions) sounds nearly discrete (and nearly identical) when decoded with the Surround Master?


Kirk Bayne
 

fredblue

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(disclaimer: i've never tried it!)

though i imagine they'd sound similar seated in the main listening position, the SQ would likely have CF content (lead vocals) leaked to the Rears whereas the QS would probably not, meaning that if you got up and moved around the room the SQ may lose imaging more quickly and of course if you went to check out the separate channels the SQ would likely have CF stuff in the Rears that wasnt there on the QS' Rears.

maybe :unsure: :LOL:
 

J. PUPSTER

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In some cases, a Quad album might be released SQ encoded in one region and QS encoded in another region, I'm wondering if the same album (SQ and QS versions) sounds nearly discrete (and nearly identical) when decoded with the Surround Master?


Kirk Bayne
I would hope they'd sound very different, if I'm understanding you correctly, honestly not sure what you're getting at here. 😕
 

fredblue

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I would hope they'd sound very different, if I'm understanding you correctly, honestly not sure what you're getting at here. 😕
in theory a QS decode and an SQ decode of the exact same content of the exact same mix should not sound wildly different from one another when run through a Surround Master, if the mix has a guitar prominent in the Rear Right channel both SQ and QS decodes should plonk it mostly in the Rear Right.

however, where it might get a bit messy, is if you check out the Rears only of each decode, whereupon i'm pretty sure you'd find the SM wiped out leaked CF content back there better on the QS decode than on the decoded Rears of the SQ encode. its something i've gone on about before, SM QS decodes obliterate CF content from the Rears whereas SM SQ decodes don't.

one day i'll get that Quadrafile LP set and give it a go... 🤞
tbh i'm surprised AOQ or someone of that ilk hasn't done tests of the Quadrafile set thru the SM already to see how it handles the same stuff in QS and SQ.. they probably have and i'm just out of the loop, he did a great job on his SM shootout after all (y)
 

J. PUPSTER

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in theory a QS decode and an SQ decode of the exact same content of the exact same mix should not sound wildly different from one another when run through a Surround Master, if the mix has a guitar prominent in the Rear Right channel both SQ and QS decodes should plonk it mostly in the Rear Right.

however, where it might get a bit messy, is if you check out the Rears only of each decode, whereupon i'm pretty sure you'd find the SM wiped out leaked CF content back there better on the QS decode than on the decoded Rears of the SQ encode. its something i've gone on about before, SM QS decodes obliterate CF content from the Rears whereas SM SQ decodes don't.

one day i'll get that Quadrafile LP set and give it a go... 🤞
tbh i'm surprised AOQ or someone of that ilk hasn't done tests of the Quadrafile set thru the SM already to see how it handles the same stuff in QS and SQ.. they probably have and i'm just out of the loop, he did a great job on his SM shootout after all (y)
That's the reply I needed, the Quad knowledge runs deep here :love:
 

sjcorne

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It's easy to compare SQ & QS encodes of the same quad mix using the various Enoch Light/Project 3 albums available in both formats. Those mixes tend to decode really well in any matrix format due to their extreme four-corner directionality, but I find the QS decoding to more closely match the discrete tape.
 

kfbkfb

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I would hope they'd sound very different
I think they'd sound close to the same (same discrete quad master, Surround Master decoder maximizing channel separation).

I was wondering if the unique characteristics of both SQ and QS would be audible.


Kirk Bayne
 

fredblue

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I think they'd sound close to the same (same discrete quad master, Surround Master decoder maximizing channel separation).

I was wondering if the unique characteristics of both SQ and QS would be audible.


Kirk Bayne
tbh i think in this instance it'd be more a case of how the Surround Master handles SQ compared to how it decodes QS.

if you compare the Rears on a Tate SQ decode to an SM SQ decode you will see what i mean about Front Centre position content leaking to the Rears 🙂
 

jaybird100

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In some cases, a Quad album might be released SQ encoded in one region and QS encoded in another region, I'm wondering if the same album (SQ and QS versions) sounds nearly discrete (and nearly identical) when decoded with the Surround Master?


Kirk Bayne
You have to assume they're both using the same mix. Most often, they will be. At the same time, Project 3 released QS and SQ encodings of several albums, and the ones I heard did sound pretty much the same. The QS was only slightly better than the SQ in some instances, especially with sounds in motion.
 
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