Schiit Audio has a surround synthesizer gadget.

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Does the Width control still work if the center channel is not in use?
I'm pretty sure the width control only affects the rear channels and that it controls how much common information to left and right channel goes to rear speakers. In other words, if a vocal is in both channels full on would be no vocal in the rear speakers. Full off would have the vocal in both rear speakers, so the rear speakers would just be regular stereo (or what is sometimes called double stereo on a fake quad). It merely controls the common negative line to the rear speakers.
 
That is just lazy implementation if true.
Lazy ? That's what an analog matrix system is: :). I think many are concerned about tarnishing the image of boxes like the Fosgate Tate II or Sansui"s QSD-1. Those were implementations doing the same thing at a higher price point. Yes, there is rudimentary steering logic, (code for automation) blah, blah, so lets talk about what its like; developing, building & selling HiFi gear... Ha

So really, we are merely talking about the level of sophistication and complement of necessary discrete components to accomplish this task. Even the IC's you see on that board are moving an analog signal through various phasing or or other "processing" before being outputted to those SE RCA's.

The post by the Schiit Design Engineer, Jason Stoddard, why he starts out by saying this is going to be my undoing. Think about it. Marketplace is heavily skewed into the belief that digital processing (DSP's) are both necessary and to double-down on the idea; an actual selling point in "any" implementation of surround sound... Amusing.

Digital is always less... its cost efficient and convenient for processing and transporting traffic for telephone networks. Why it was developed in the first place. Later, the tech was applied to the problem of noise in recordings... Every time I see a CD I curse. Music industry was in love, cassettes and tape recorders in general were destroying civilazation and driving them crazy (copying). CD had the potential to reduce piracy... Long story. It didn't and the product is always, a less than. Its physics, no sample equals the original. Fooling the brain into thinking anything, is not that difficult, as we all know.

The name of the site is QuadraphonicQuad... that's as analog a name as you can get. All (2) channel tape & vinyl analog recordings regardless of format began life as analog recordings. Today we continue the ultimate ironies... I've actually seen vinyl with a sticker on the front exclaiming that its the new "Digitally Remastered" version. On vinyl. That's now both sad & amusing.

I've never purchased a unit from Schiit. Heard nothing but good things. That post by Mr. Stoddard spelled out everything I really wanted to know except the details of his choice in Matrix. The Schiit Matrix. Its exists, he won't say. It fits somewhere along the many analog matrix expressions, but we know from Mr. Stoddard's discussion (sales plan as someone said! Ha)... that the center channel is summed L&R and SW is 2nd order slope filter. So, we can conclude that a (4) channel matrix was implemented aka: designed. Cause he said its his own flavor... Question is; is close to Compatiquad.

As I said before my favorite box is the Electrovoice EVX-44 which is the universal quadraphonic decoder which is also licensed with CBS for SQ. Details about the choice of matrix types is an amazing page. This is my favorite reference page by the "Author". Quadraphonic Systems

Even so, the shock of seeing how that board was so nicely labeled. A downloadable manual. A downloadable 63 page test report on its electrical & audio specifications. (Absent the Matrix... Ha) That board is sea of what look to be electronic attenuators. Its short-signal-path, suface-mount, paying so much attention to power supply... its why these guys were able to build new EQ's and get favorable reports... cause they can... due to improvements in circuits, manufactured boards & components that are available. Its truly inspiring to watch. And all at the $400 price point... fascinating.

Thanks for reaching out to them. They shipped my Loki's & Mani... but the SYN is somewhere between 1 & 2 weeks... Fingers crossed.
 
Actually, you can build yourself a Hafler/DynaQuad (active/line level) decoder with some low noise OPAMPs and resistors, I built myself one 40 years ago this spring.

I actually prefer the simplicity of this type of fake surround sound creation, it doesn't alter the stereo at all yet extracts surround sound.


Kirk Bayne
 
I actually prefer the simplicity of this type of fake surround sound creation, it doesn't alter the stereo at all yet extracts surround sound.


Kirk Bayne
And once you find an adjustment that provides an enjoyable enhancement for most of your music you can forget about it. Obsessive tweaking searching for the best adjustment kills the joy.

Another concern you might afflict on yourself is to believe that you always have to be in the sweet spot, even for background listening. Just don't think about it. I suffer from that, I never listen to Quad or mch music as background music. It bothers me.
 
I agree. I like fiddling for setup. Not for life. I've got a trove of vintage Quad gear in need of recapping and more... But I have an NOS EVX-44, and its mixed with all newish system components; preamp, 2 power amps, nice DAC (all 2007) and new Wiim Pro Streamer. I don't turn it off. Its the live-with system. Vinyl is an ongoing project of cueing cams and cap replacement for my CD-4 experiments... Right now I'm limited to streaming and my vinyl stereo albums and matrix quad... playing currently on a new Music Hall US-1 with a Reloop Vibe cartridge, (Ortofon) So, yesterday was SQ day... it was swell. Paul Simon, John Lennon, Billy Joel, Pink Floyd, The Carpenters, Aerosmith, Loggins & Messina, Joan Baez and then I open a sealed one I picked up... an SQ record from 1977; Garrick Ohlsson Rachmaninoff Transcriptions (Angel - S-37219) Amazing
 
I will likely get one as well. Until I can spring for it, I am really interested in owners’ comparisons with DPLIIx and Dolby Surround which sound fun, but in my system, teasing out simulated surround from my aging AVR and leaving it to process dedicated multichannel mixes is quite attractive. The gain control with the Syn is also something I could benefit from.
 
I have no interest in upmixing, but does anyone think this might have any utility toward accurately decoding any variety of quad vinyl, even if by accident? It looks a lot like Surround Master 3 but certainly cheaper here in the US.
The major difference between the Schiit and Shinola, er, the Surround Master is accurate decoding, with high separation, of both SQ and RM/QS. It also does a terrific job upmixing stereo to surround. Yes, the SM is more expensive, but the difference in performance quality is truly worth it.
 
The major difference between the Schiit and Shinola, er, the Surround Master is accurate decoding, with high separation, of both SQ and RM/QS. It also does a terrific job upmixing stereo to surround. Yes, the SM is more expensive, but the difference in performance quality is truly worth it.
Thanks for the comparison. You are saying the SM3 does all the above better than the Syn?
 
Thanks for the comparison. You are saying the SM3 does all the above better than the Syn?
The Syn is exactly what the three letters of its model suggest. SYNthesizer. While the Surround Master can also do that function, it also decodes matrixed quad, with separation that's so close to discrete, you won't be able to tell the difference. That includes SQ, and RM-based systems, such as QS, Involve, EV-4, Dynaquad, QX, QM, and all those Japanese variations. That includes Dolby Surround, Stereosurround, and you should hear what it does with QSound! It's also tri-band, meaning it breaks the sound into three different frequency bands, to apply the appropriate amount of decoding to each. That also maximizes the separation. So, Tulianon Troppo, the Surround Master is much better, and more than worth the difference in price.
 
The Syn is exactly what the three letters of its model suggest. SYNthesizer. While the Surround Master can also do that function, it also decodes matrixed quad, with separation that's so close to discrete, you won't be able to tell the difference. That includes SQ, and RM-based systems, such as QS, Involve, EV-4, Dynaquad, QX, QM, and all those Japanese variations. That includes Dolby Surround, Stereosurround, and you should hear what it does with QSound! It's also tri-band, meaning it breaks the sound into three different frequency bands, to apply the appropriate amount of decoding to each. That also maximizes the separation. So, Tulianon Troppo, the Surround Master is much better, and more than worth the difference in price.
Wow. Thanks for the explanation!
 
Wow. Thanks for the explanation!
I would also like to add that it can at times do better surround than actual music that was mixed 5.1. I have an SACD of Holst the Planets and I was really disappointed with the "surround" and I switched to 2 channel and ran it the the Surround Master and it was so much more enjoyable. Ditto the QSound, Roger Waters Amused to Death through the Surround Master has to be heard even compared to the multichannel Blu-Ray version it holds up really, really well.

Still, even though I won't be buying a Syn it would be good to have someone give them both a demo and share their thoughts.
 
Oh. My bad. I thought the surround master also only takes a stereo signal.
It does take only a two-channel signal. That said, that signal can be matrix-encoded, meaning the SM will decode the surround sound from that matrixed signal, and do it accurately. Feed an unencoded signal in, you still get surround out. It works, in this case, as most synthesizers will, but will do so with greater separation, meaning a much more satisfying effect. I've played many stereo records that came out sounding damn close to discrete quad. It would definitely be more separation than the Syn.
 
I would also like to add that it can at times do better surround than actual music that was mixed 5.1. I have an SACD of Holst the Planets and I was really disappointed with the "surround" and I switched to 2 channel and ran it the the Surround Master and it was so much more enjoyable. Ditto the QSound, Roger Waters Amused to Death through the Surround Master has to be heard even compared to the multichannel Blu-Ray version it holds up really, really well.

Still, even though I won't be buying a Syn it would be good to have someone give them both a demo and share their thoughts.

I've been sold on the Surround Master for years, but what really shocked me was when I played the new stereo mix of Revolver through it. On most songs, the SMv2 produces a much more satisfying presentation than the Atmos mix. (Yes, I can play around with the channel balances on the Atmos mixes to correct this issue, but it's a PITA.)
 
So the Syn and SM v3 perform the same function with non-matrixed stereo signal, but the SM v3 will theoretically provide more separation. But nobody really can compare the two from listening yet, right? I can see that I might be waiting for a long time for that. It seems if one owns a SM v3, there would not be much incentive to buy a Syn.
 
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