#21
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Anyone Running Fiber to their Streamer or Network Bridge?
To answer the question about WiFi- it is potentially way dirtier than an Ethernet connection due to its relatively high RF power output of up to 100mW @ 2.4 GHz / 5 GHz. It can penetrate grounds and cable shields and induce currents there. It can cause audio rectification that shows up as in band audio noise.
Ethernet by comparison is pretty quiet. It is transformer isolated already by design. It runs approx 5V differential and the currents are relatively small. The twisted pair design limits unwanted radiation. The transformers can couple noise across component interfaces, so isolation at the point the signal enters your system is probably a good investment. Analog supplies in the last interface before the signal enters your system also make sense from an engineering perspective. Elsewhere not so much.
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Main System: Amati Futura Mains Amati Homage VOX Center, Proac Response 1sc Rears, Three MC2301's for L,C,R MC 602 for the rears C 1100, MX 151, MCD 1100, MR 80 Nottingham Dais with Wave Mechanic Sumiko Palo Santos Presentation SurfacePro 3, RPi 4, ROON, WW Starlight Platinum USB, Schiit Yggdrasil, Benchmark DAC3 HGC MX 151, OppO BDP-95, JVC RS-500 DILA projector, 106" diagonal Stewart Luxus Screenwall Deluxe with Studiotek 130 G3 material. Lake House: Ohm F, MC 275V, C2300, MR 77, Rega P3 OnDeck: McIntosh MAC 4300v |
#22
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Perfect! Thanks!!!
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Main Equipment: Kharma Elegance dB11-S, JL Audio F113v2 X 2, Block Audio Line & Mono SE Amplification, Bricasti M21 DAC, Antipodes Kala K-50 Server, Clearaudio Performance SE. Satisfy tonearm & Maestro Wood MM cartridge. Power: Shunyata Everest 8000, Sigma XC v2, Sigma NR v2, Block Audio PCs, Defender, ADDPowr Wizard Grounding: Shunyata Altaira CGS - 4 X Alpha CGS cables, Network : Supra Cat 8+, Twin (Nenon) Modified Buffalo GS2016 Switches, Keces P3 LPSU, Cables: Wireworld Platinum 8 USB, Wireworld Platinum Eclipse 8 Speaker cables, 6M & 1M Tubulus Concentus ICs, Other:Two PSI Audio AVAA C20, Multiple GIK products, Stillpoint Apertures, Stillpoint Minis and Ultra SS, Three 20 Amp lines, Furutech GTX - Gold outlets, Adona Rack |
#23
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Hmmm...
According to your diagram, the only cable (in your diagram) that should have any impact is the one running to your USB DAC. No actual conversion into anything close to "audio" is happening until you hit your USB DAC and the portion where jitter/timing comes into play (in your specific setup) is at the computer. Ironically, your power over ethernet portion adds A TON of noise to your signal. That's one of the reasons those types of links are limited to such low speeds (comparatively). The fact that makes no impact to the sound quality again proves the above statement. |
#24
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SQ from some systems are affected by WiFi RFI. And not everyone can get their WiFi network to stream Hi-Res perfectly.
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Peter Lie - LUMIN Firmware Lead Last edited by wklie; 03-29-2019 at 04:11 AM. |
#25
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Craig.......... do you have a link to some treatise/testing that this might be true? Seems to defy the laws of physics to my small brain.
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Glenn... Canton Reference 9 Clearaudio SM Pro Focal Bathys JLA 10" Dominion Kuzma Stabi S w/MC & MM Magnepan 1,7i McIntosh MA8950 & MR88 Oppo 203 Roon Nucleus Rose Hifi RS150B Shunyata Gemini-4 Sony ST-A6B, TA-F6B, ST-J75 & PS-X75 Sorane SA1.2 & TA-1L Stillpoints LP1v2 WW Pt, Au & Ag |
#26
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Glenn, The concept is raised in the first post. I know very little (like nothing) about the types of ‘noise’ in our Ethernet or WiFi or in our power cables etc connections. Since I am a devout Digital only follower, I am keenly interested in things that might provide me a better SQ.
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Main Equipment: Kharma Elegance dB11-S, JL Audio F113v2 X 2, Block Audio Line & Mono SE Amplification, Bricasti M21 DAC, Antipodes Kala K-50 Server, Clearaudio Performance SE. Satisfy tonearm & Maestro Wood MM cartridge. Power: Shunyata Everest 8000, Sigma XC v2, Sigma NR v2, Block Audio PCs, Defender, ADDPowr Wizard Grounding: Shunyata Altaira CGS - 4 X Alpha CGS cables, Network : Supra Cat 8+, Twin (Nenon) Modified Buffalo GS2016 Switches, Keces P3 LPSU, Cables: Wireworld Platinum 8 USB, Wireworld Platinum Eclipse 8 Speaker cables, 6M & 1M Tubulus Concentus ICs, Other:Two PSI Audio AVAA C20, Multiple GIK products, Stillpoint Apertures, Stillpoint Minis and Ultra SS, Three 20 Amp lines, Furutech GTX - Gold outlets, Adona Rack |
#27
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Quote:
I for one cannot tell a difference in audio quality when connected via WiFi or Ethernet. Except of course where there are problems with Wi-Fi (weak or no signal). |
#28
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Quote:
The fiber itself is transmitting light, which is not affected by local electrical and magnetic fields. Nuclear reactor instrumentation tends to favor optical communication for this reason. So, take a noisy input signal, detect as a '1' or '0', turn to a light pulse, transmit down the fiber, turn back to an (hopefully clean) electrical 1 or 0 at the other end. * a typical fiber propagation speed is about 2/3 the speed of light. So, taking a 192kHz signal, a 'pulse' of light will be ~500 meters long. The entire fiber will 'light up' and turn off. Even at DSD512 speeds, the pulse will be 5-10 meters long. This applies to the connection between a streamer and DAC. In most applications, the light pulses are part of a communications protocol, similar to ethernet. (ethernet is a protocol, Cat6 is a cable).
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Main - Roon on Synology/Sonos Port/SoTM Neo endpoints; Chord Qutest, Bryston BP-17 cubed with phono option; EAT C-sharp with Ortofon Bronze MM, Bryston cubed Amplifier; Revel F126Be on custom Atocha stands; interconnects by WireWorld, furniture by Atocha Design 'Phones Audeze LCD-3, Bryston BHA-1; Office: Sonos/Roon; OPPO HA-1, Naim NAP100 and PSB Mini-C. Media Room:, Samsung QLED QN90 series, Sonos, OPPO 205, ATI N-core driving KEF LS-50's with REL subs; furniture by Glassisimo; Kids - U-turn for vinyl, Sonos Play5; Summer Shack - Sonos, vintage Pioneer, Dynaudio Special 40's. Last edited by clpetersen; 03-30-2019 at 09:01 PM. |
#29
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Wow! The level of knowledge here.
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Main Equipment: Kharma Elegance dB11-S, JL Audio F113v2 X 2, Block Audio Line & Mono SE Amplification, Bricasti M21 DAC, Antipodes Kala K-50 Server, Clearaudio Performance SE. Satisfy tonearm & Maestro Wood MM cartridge. Power: Shunyata Everest 8000, Sigma XC v2, Sigma NR v2, Block Audio PCs, Defender, ADDPowr Wizard Grounding: Shunyata Altaira CGS - 4 X Alpha CGS cables, Network : Supra Cat 8+, Twin (Nenon) Modified Buffalo GS2016 Switches, Keces P3 LPSU, Cables: Wireworld Platinum 8 USB, Wireworld Platinum Eclipse 8 Speaker cables, 6M & 1M Tubulus Concentus ICs, Other:Two PSI Audio AVAA C20, Multiple GIK products, Stillpoint Apertures, Stillpoint Minis and Ultra SS, Three 20 Amp lines, Furutech GTX - Gold outlets, Adona Rack |
#30
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The reason is to use fiber network is that there will not be any EMI, RFI, other electrical noise (or even ground loop due to shield) with the fiber. This is why FMC is used for Ethernet isolation. However, there is still conversion from optical back to electrical signal, that's why a clean power for the DAC-side FMC is essential.
This is well discussed in optical network threads elsewhere.
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Peter Lie - LUMIN Firmware Lead Last edited by wklie; 03-29-2019 at 12:49 PM. |
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