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CD Players, Digital Music & Servers Aurender, dCs, Esoteric, Lumin. |
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Thread Tools | Display Modes |
#61
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Well Tom, without even clicking the link, my interests are piqued.
Thanks!!
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AKA J2Ordan McIntosh/Legacy/VPI/Bricasti/DIYCable |
#62
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Tom-
Down loaded pretty much instantly on a Wifi MacBook. It was quite an undertaking on your part and most importantly, you enjoyed the experiment! Not being a double E major, a lot is most likely is over my head. But... your conclusions reinforce to me how subtle tweak differences are; especially when beginning with a strong foundation of McIntosh components.
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AKA J2Ordan McIntosh/Legacy/VPI/Bricasti/DIYCable |
#63
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Glad it worked! It’s the first time I’d used One Drive to host a document.
After listening for several hours last night the quiet power supply made a bigger improvement than was first apparent. Now I have to package it up - it’s put together in (ahem) a utilitarian way. I’ll add pics of the test setup and quiet supply later today.
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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 |
#64
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Quote:
The proof really is in the measured data but the listening part should confirm whether the differences are significant enough to appreciate them by the audiophile ear. Looking forward to your findings. |
#65
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This is the money shot. Massive reduction in noise on the USB output. The Green trace is the quiet power supply output. Basically thermal noise from the regulator I used. The Blue and Cyan traces are the RPi USB noise without quiet power supply.
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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 |
#66
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Quite the difference.
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#67
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Very impressive, Tom. Appreciate your effort to build as well as share these results. The regulated low-noise supply in your link is hand soldered on perf-board? Kudos!
Not sure I know what a 'USB sink' is -
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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; 02-13-2021 at 10:59 PM. |
#68
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Hey Roonies!
Thanks! A USB sink is the thing that draws power from a USB female socket which is called a source.
In this case the USB sink is my DAC. The quiet power supply is cobbled together from regulator modules I bought on Amazon, and the filter components I soldered together. It works but is pretty crude. If the listening tests pan out I’ll design a version with newer high-performance regulators on a PCB.
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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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