#1
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Best Upstream Chain
For my digital steaming playback to my Lumin T2 I’m running from dual band router via 15’ Ethernet cable to fiber converter to fibre converter back to Ethernet to Lumin. If it was to add an Audio grade network switch that has the fibre connector, where in the stream would this be best placed? Should I even use the fibre or eliminate it completely? I’m considering the SOtM sNH-10G Ethernet Switch with external power supply.
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#2
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I really like having the optical fiber in the loop to eliminate any potential issues. Similar to you i have a switch with a fiber connection that runs from my wireless router down to my two channel room where I have a Small Green Computer Optical Module which converts it back to eithernet for the 1m distance to my dCS Upsampler.
I hope the next iteration of dCS Vivaldi Upsampler has a optical input so I can eliminate that last bit of ethernet. |
#3
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Jim has a good set-up. I'd use his set-up as an example. If you're going to get the SOtM switch, which has very good optical SFP ports, I'd put the switch furthest downstream closest to your Lumin T2. That way you'll have a good clock in the SOtM switch before converting back to Ether to connect to the T2 that will remove any phase noise from "upstream" and send it straight into the Lumin before it can be "degraded" by phase noise from an el-cheapo clock in a "generic" FMC between the destination optical end and the Lumin T2. My recommendation would be NOT to eliminate the run of fiber.
If you have the budget, I'd also get the OpticalModule Deluxe FMC and use it either "upstream" or "downstream", whichever sounds the best. The nice thing is, you could try both and go with what sounds best.
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components. Last edited by Puma Cat; 02-20-2023 at 10:13 PM. |
#4
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Quote:
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components. |
#5
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I would second Stephen's advice to NOT removing the optical. It was the single most noticeable addition I made in lowering the noise floor. It's been a couple years and I still remember that wow moment after hooking it up.
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Doug 2-Channel McIntosh C2700, (2X)MC601, MEN220 Lampizator Baltic 3 Sonore opticalRendu, SGC sonicTransporter i5 (Gen 3), Roon Thorens TT TD318 B&W 803D3 JL Audio (2x)f110v2 Shunyata Denali/S v2, Alpha v2 PCs, WW Gold/Silver Eclipse Interconnects, Platinum USB Whole House Music Listening Bluesound Vault2i, PowerNode2, PulseMini2i, Pulse2, (3x)Flex 5.2 System Above using Passthru Marantz SR7012 Oppo 205, Apple TV (4th gen), Sony XBR850e65 B&W HTM2 D3 Second 5.1 System Castoffs from Upgrades LRC Paradigm Millenia 20, Velodyne MiniVee 10, KEF surrounds, DefTech AW6500 |
#6
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Optical (linear sully in the RX end, modded optical RX with low noise tcxo) is the ONLY thing that has made a difference in my digital signal chain.
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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 |
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