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Author Topic: S/PDIF Cable  (Read 50393 times)
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PeterSt
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« Reply #15 on: February 15, 2010, 05:13:20 pm »

i2s connectors do not exist, since i2s does not exist as external connection.

FW cables should not be all that important, because what's transferred over them is just digital and error checked.
Btw, I once tried to make a FW cable myself, but it didn't want to work. Never understood why.
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A: W-Y-R-G, B: *W-G* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> Blaxius*^2.5* A:B-G, B:B-G Interlink -> Orelo MKII Active Open Baffle Horn Speakers. ET^2 Ethernet from Mach III to Music Server PC (RDC Control).
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« Reply #16 on: February 15, 2010, 05:29:40 pm »

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i2s connectors do not exist, since i2s does not exist as external connection.

Yes, you are right!
What connectors are you planning to use on NOS1 then??
RJ-45 DIN/cat5 connector or some other 5/6 pins mini-DIN connector.

I think CAT5 can be an option for the cable, also from Belden 1585A (Teflon) or something like that.
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« Reply #17 on: February 15, 2010, 05:41:28 pm »

There are I2S Cables Available
There are I2S Cables Available

But is there a standard, guess not. (ISO)
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« Reply #18 on: February 15, 2010, 11:25:58 pm »

Quote
What connectors are you planning to use on NOS1 then??

None ... No external i2s for sure ...
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A: W-Y-R-G, B: *W-G* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> Blaxius*^2.5* A:B-G, B:B-G Interlink -> Orelo MKII Active Open Baffle Horn Speakers. ET^2 Ethernet from Mach III to Music Server PC (RDC Control).
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #19 on: February 16, 2010, 12:02:03 am »

Quote
What connectors are you planning to use on NOS1 then??

None ... No external i2s for sure ...


With your plans do we still need a SSD in PC for better SQ ?
 Happy
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« Reply #20 on: February 17, 2010, 12:14:57 pm »

I don't actually use RCA spdif cables in my setup (I use dual-wire AES for signal and BNC for wordclock, between the Weiss and PMII). However, I came across this thread quite a while ago that intrigued me: http://goodsoundclub.com/Forums/ShowPost.aspx?postID=5565#5565.

From the thread, apparently the old Belkin Synapse Platinum Digital cables (the blue ones from the 1990s) are the 'dog's bollocks', as we say here in the UK. You may notice that there is a poster called 'miab' who is offering these cables for $65 each plus shipping. I've just ordered a couple of these from him, and they should be in the post to me right now. I'm hoping to be able to convert one to BNC and use it for my wordclock. Assuming I don't screw it up and need the other one, I may have one spare. I'd be happy to sell it for the price I paid for it (even if I'm hit with customs duty, the price shouldn't be more than £60 plus shipping). Alternatively, you might want to contact miab directly to ask if he has more...

If you're thinking of another solution, one thing to bear in mind is that cable length is important. Some people believe that too short is no good! See http://www.positive-feedback.com/Issue14/spdif.htm.

Mani.
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« Reply #21 on: February 17, 2010, 12:33:11 pm »

Quote
Some people believe that too short is no good!

IMO this would be specifically true when the termination isn't right. And ... with any 75 Ohm cable and RCA connectors this would be the case (not correctly terminated). So, you'll get reflections, and the longer the cable, the less impact the reflections have (onto the original output).

(I didn't read that link, and I hope it tells similarly Happy)
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XXHighEnd Mach III Stealth LPS PC -> Xeon Scalable 14/28 core with Hyperthreading On (set to 14/28 cores in BIOS and set to 10/20 cores via Boot Menu) @~660MHz, 48GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/0/*1*/ Q1Factor = *4* / Dev.Buffer = 4096 / ClockRes = *10ms* / Memory = Straight Contiguous / Include Garbage Collect / SFS = *10.13*  (max 10.13) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / Stop Desktop, Remaining, WASAPI and W10 services / Use Remote Desktop / Keep LAN - Not Persist / WallPaper On / OSD Off (!) / Running Time Off / Minimize OS / XTweaks : Balanced Load = *62* / Nervous Rate = *1* / Cool when Idle = n.a / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = Stable / Custom Filtering *Low* (16x) / Always Clear Proxy before Playback = On -> USB3 from MoBo -> Lush^3
A: W-Y-R-G, B: *W-G* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> Blaxius*^2.5* A:B-G, B:B-G Interlink -> Orelo MKII Active Open Baffle Horn Speakers. ET^2 Ethernet from Mach III to Music Server PC (RDC Control).
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #22 on: February 17, 2010, 12:49:21 pm »

Thanks Mani. I'll definitely check out that thread, though I've settled on a solution. My next question concerns interconnects. Having read this article, http://consumerist.com/2008/03/do-coat-hangers-sound-as-good-monster-cables.html, a while ago, I've never taken them too seriously. However, after hanging around here for the last year or so I think I need to ask: anyone have suggestions on interconnects? How much do they matter?
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« Reply #23 on: February 17, 2010, 12:57:23 pm »

I didn't read that link, and I hope it tells similarly Happy

You're bang on. So, you're not just a pretty face after all Wink

Mani.
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« Reply #24 on: February 17, 2010, 01:06:40 pm »

Forgot to ask: So whats the optimal length for an S/PDIF cable, 75 ohm, rca connectors?
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« Reply #25 on: February 17, 2010, 01:21:17 pm »

...anyone have suggestions on interconnects? How much do they matter?

How big is your can for the worms that'll sprawl out of asking such a question?

FWIW, many years ago, I tried more (analogue) cables than I can remember - both interconnects and speaker cables. I spent a veritable fortune on this endeavour.

I found that I really didn't like silver-plated or solid silver... at all. No matter what the make, or price (and I'm talking thousands of dollars here). I even tried solid gold (yes, solid gold) which I liked a lot more than any silver one. I actually still have these... but have them 'wasting away' in my office system.

There were two makes/models that I preferred over all the others.. and they were a fraction of the price of the silver/gold ones I tried. One was Van den Hul 'The Second' interconnects and speaker cables. Probably too 'dark' for most people, but such a natural and full tonal texture. The other was Analysis Plus Solo Crystal interconnects and speaker cables. Indeed, I use these exclusively in my main system - with active crossovers and 8 amps, as you can imagine, I'm using a lot of these cables. I didn't care at all for the more expensive Analysis Plus silver- and gold-plated cables - I actually hated the former.

Now, I'm certainly not suggesting that you do what I did - actually buy the cable then sell what you don't like at a massive loss, if at all. (In fact, I probably have the world's most expensive cabling in my car, becaue I couldn't sell it. But my car is so noisey that I can't hear a thing anyway!)

Try to find a retailer who will let you return what you don't like... that's my only advice really.

Mani.
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« Reply #26 on: February 17, 2010, 01:22:24 pm »

Forgot to ask: So whats the optimal length for an S/PDIF cable, 75 ohm, rca connectors?

Over 1.5m, according to Dan Lavry...

Mani.
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« Reply #27 on: February 17, 2010, 01:42:15 pm »

... that's my only advice really.

Actually, that's not my only piece of advice. On top of this, I would say stick with good quality pure copper over anything else (except maybe carbon). Even then, the insulation material/geometry will have an effect, and this is why you're going to have to listen to it in your own system.

A final thought - don't forget that there will be cabling inside your electronics and speakers that may ultimately act as the weakest link. This is why I have my speaker cables soldered directly onto my speaker drivers. But I don't intend to do the same thing with all my electronics!

If I had to do it all over again, I'd stick with cheap OFCC cables from my local electronics supplier... honestly. There are far more important nuts to crack, IMHO... like taking the digital 'glare' out of digital - something that Engine#4 looks like it's going to help us do.

Mani.
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« Reply #28 on: February 17, 2010, 01:44:41 pm »

Again, thanks Mani!
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XX2.07/MB: ASRock Extreme 4M , i7-3930K @ 0.5GHz/ RAM-OS W10586/32 Gigs 1600 DDR3/ Clarixa usb cable  /Q1,3,4,5 = *14*/1/1/*1* / *Q1Factor = 1* / Peak Extension: Off/Dev.Buffer = 4096 / ClockRes = *.5ms* / Straight Contiguous / SFS = *.02,/ Do Nothing With Cover Art / not Invert / *(Phase Alignment Off  / Playerprio = Low / ThreadPrio = Real Time / Scheme = 3-5 / UnAttended (Just Start) / *All* Services Off except LAN & RDC/ Persist off/No OSD / No Running Time / Minimize OS / Boost on/XTweaks : Balanced Load = *40* / Nervous Rate = 1/ Cool when Idle = NA / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = Best/ Time Stability = On/ No Up-sampling/R-2R DAC
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« Reply #29 on: February 17, 2010, 01:49:56 pm »

About my earlier mentioned "don't go over 1m for SPDIF" ... a long time ago I learned by heart (from whereever) that 90cm would be a good length. Today ? I don't know. I have always be ignorant and used a cable as short as possible with 75 Ohm RCA connectors (they do exist). So, now I indeed read that article from/about Steve, and when the internal circuitry doesn't comply to 75 Ohm termination, YMMV.

In the mean time I read this a while back from Steve, and I think it is really good : http://www.empiricalaudio.com/computer-audio/audio-faqs/short-versus-long-cables
This is about the tradeoff between long interlinks and short LS cables, and vise versa.
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For the Stealth III LPS PC :
W10-14393.0 - July 17, 2021 (2.11)
XXHighEnd Mach III Stealth LPS PC -> Xeon Scalable 14/28 core with Hyperthreading On (set to 14/28 cores in BIOS and set to 10/20 cores via Boot Menu) @~660MHz, 48GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/0/*1*/ Q1Factor = *4* / Dev.Buffer = 4096 / ClockRes = *10ms* / Memory = Straight Contiguous / Include Garbage Collect / SFS = *10.13*  (max 10.13) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / Stop Desktop, Remaining, WASAPI and W10 services / Use Remote Desktop / Keep LAN - Not Persist / WallPaper On / OSD Off (!) / Running Time Off / Minimize OS / XTweaks : Balanced Load = *62* / Nervous Rate = *1* / Cool when Idle = n.a / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = Stable / Custom Filtering *Low* (16x) / Always Clear Proxy before Playback = On -> USB3 from MoBo -> Lush^3
A: W-Y-R-G, B: *W-G* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> Blaxius*^2.5* A:B-G, B:B-G Interlink -> Orelo MKII Active Open Baffle Horn Speakers. ET^2 Ethernet from Mach III to Music Server PC (RDC Control).
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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