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About jabbr

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  1. jabbr

    Comparison of 2 DACs

    Ok, we agree ... the cost of the Ethernet input is offset by savings. Maybe we were just disagreeing on terminology
  2. jabbr

    Comparison of 2 DACs

    Right and the Ethernet DAC doesn’t need an external device, so can tradeoff internal power supply to power the interface ... Ethernet + SoC/FPGA ... parts cost would be a wash My point. We are talking about a $10k DAC and presumably they get parts in volume.
  3. jabbr

    Comparison of 2 DACs

    Um ok, so all the Sonore devices have Ethernet interfaces ? transformers, cost? Why should this be different for a DAC ... well of course it’s different but you don’t also need a USB output so ... Again, having personally spent a considerable amount of time looking at fiber Ethernet/SFP(+) interfaces, the cost is in the IP not the hardware... There is a reason why DIY is so crazy cheap — we don’t charge ourselves for our time 😂😂😂
  4. jabbr

    Comparison of 2 DACs

    The LT3045 is $7 single at Mouser an $4 for 100 so ... Seriously the Ethernet input doesn’t need a crazy expensive PSU We are talking a $10k DAC Im saying the price is IP and standing by this statement
  5. jabbr

    Comparison of 2 DACs

    You mean you don’t already use a separate supply for the USB? Much more expensive like say $20 parts which is peanuts.
  6. jabbr

    Comparison of 2 DACs

    Sigh, the parts are really cheap even if you do it right. The SFP cage is always shielded. Why would the Ethernet interface require its own transformer? I mean doing it right with an SFP(+) cage and fiber — parts are dirt cheap compared with the development effort. Trust me there isn’t $10k worth of parts ... it’s all IP
  7. jabbr

    Comparison of 2 DACs

    The "network streamer" parts themselves are cheap. Perhaps the cost of FPGA development or other factors affect the price.
  8. Ok, so let's take some small planar loudspeakers -- do those count? Now place one directly to the side of your right ear and the second one directly to the side of your left ear. Listen.
  9. The Solarflare 7322F (which I have several of) has a rather low phase error onboard clock: https://www.solarflare.com/Media/Default/PDFs/SF-111380-CD-LATEST_Solarflare_SFN7322F_Product_Brief.pdf Solarflare is known for low latency. That switch looks nice but I can't justify that price ... all the 10 Gbe gear is pretty good
  10. No but it should be evident to anyone that has used them, that sound emanates from two points (stereo) and the soundstage as reconstructed by the ear/brain extends far far beyond the physical location of the transducers.
  11. Why not? I don't know where this assumption comes from. There are many different types of speakers. In the most extreme case, IEMs, or any headphone, the soundstage clearly extends beyond the "speakers", front, back, side to side ...
  12. In my profile there are 3 listings of systems that each have a single voltage LPS powering on board DC/DC converters. 1,2 are connected via fiberoptic Ethernet and 3 is connected by WiFi. Other people do things differently but that’s how I do it.
  13. I say there is no solution for you because there is no one perfect answer that everyone agrees on. That above is a reasonable compromise. I would focus on obtaining a low noise motherboard/processor because using a low noise supply with a high power/high noise board doesn’t reduce your noise as significantly. Thats why I use a very low power network renderer, and yes I use an LPS with it/them.
  14. The ARM world is trending toward SoCs which can have network optimized hardware built into the same chip as the CPU. The Marvel Armada series is designed for network ops and I've used for audio streamers: Solid-Run ClearFog has both an SFP input as well as RJ-45 Solid-Run MacchiatoBin has a set of SFP(+) input (10Gbe) as well as M.2 GlobalScale EspressoBin has an M.2 which allows for WiFi 802.11ac Mine run with Realtime linux kernels... (4.18.12) These pups are designed for low latency network I/O ... and cheap
  15. jabbr

    MQA The Truth lies Somewhere in the Middle

    a) yeah ok we know you can deconvolute a crappy recording to "sharpen" ... nothing unique b) ... wavelets ... To summarize: yet another lossy compression scheme that approaches the SQ of hi-rez ... yaaawn