Advice for purchasing Streamer

Hi,
I want to buy a streamer to connect it with Audirvana via upnp.

  • Auralic Aries gé looks good but doesn’t seem compatible with Audirvana.
  • Lumin U2 is a good candidate but I do not find real technical information.
    3D lab transport v5 signature is also a good solution

From my point of view, the only difference between good quality streamers is the jitter of the output signal.

Do you have an advice ? May be another solution?

Buy

There are streamers mentioned as well. Wattson Audio for example.

Can you tell us what DAC you have?

My goal is to upgrade my system App + Streamer + DAC. The DAC is not yet selected. My be Atol DAC300 or Moon MOON 280D.

The Rose RS130 is also a very good candidate.

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Heh, this may be more trouble than you want to go to, but do you know any Linux, and do you have a way to get optical Ethernet to your streamer (or care to buy a switch for about $129 that will convert copper Ethernet to optical)?

If you would rather buy something that Just Works, that’s of course very understandable.

No reason to reinvent the wheel and get tangled in the DIY morass… :wink:

:notes: :eye: :headphones: :eye: :notes:

I have a good knowledge about Linux, CLI and DIY. Why?
Rose gives an adaptator to convert copper to optical ethernet.

Here is what I use as a UPnP endpoint, with the optional SFP+ optical Ethernet input:

I have a minimal Arch Linux install on it, no GUI, plus mpd and upmpdcli for UPnP capability.

SFP+ is important because the 10G optical Ethernet specification requires that the equipment produce low jitter, and that it reduce any higher jitter input it sees to specified levels. Of course lower speed optical Ethernet connections can have low jitter as well as the electrical isolation that comes from use of optical, but it is not required by specification as it is with 10G optical.

Can you please provide some corroborative data/information regarding this statement you use frequently… I have read much on the 10G specification and have yet to see any mention of noise tolerance differentials… Jitter is a form of frequency based wobble that creates side-band harmonic distortion in the signal… What is it with 10G optical versus 10G wire, that improves the potential for noise, outside of the decoupling of the ground/earthing potentials between the components?

:notes: :eye: :headphones: :eye: :notes:

@Jud,
If I understand well, you created your own streamer?
How do you get out to your DAC?
I like tinkering, but my main goal is to listen to beautiful music!
I think that high-end streamers are interesting for their very low noise and very low jitter, and I myself heard the difference even though I was very skeptical.
I think that a home streamer will never have these properties.

I had a very nicely designed streamer (microRendu). This sounds much better, not by a little bit.

From the streamer to the DAC I have an optical USB cable. Not the fragile type with thin copper wires, but a real optical cable with no end to end copper connection. It has power injection at the DAC end to meet the USB specification of 5v power. I use a small Teddy Pardo power supply for this. Here is the cable:

I think the salient question is found in a true juxtaposition of something like @Jud’s system configuration using the IoT device versus a vertically integrated device design like the TEAC UD-701 in a system configuration where optical isolation is employed in either the Ethernet transmission or an optical USB transmission versus a well designed and implemented, pure USB transmission, utilizing Bulk PET transmission protocol.
Now if it is all about price of entry… this criteria injects another rationale and potential for compromises.

:notes: :eye: :headphones: :eye: :notes:

i7 16gb Laptop running Audirvana with a SMSL P0100 connected to a good DAC.

Hi all,
I purchased a Lumint U2 second hand. I’m going to test it this week.

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Let us know how it goes. :slightly_smiling_face:

It is interesting that you are choosing the streamer before the DAC… In consideration of a DAC, how does unfettered 1-bit DSD fit into your playback scheme? What computer platform are you on…? Not all DAC’s handle DSD the same… Lumin DACs utilize the ESS DAC (multi-bit) chipset which do not provide an unfettered 1-bit PDM (DSD) path to the D/A output circuitry.

:notes: :eye: :headphones: :eye: :notes:

AS is located on a laptop with Ubuntu low latency.
The U2 can provide DSD or PCM in its outputs:

From spec:
DIGITAL OUTPUT STAGE:

USB:
Native DSD512 support
PCM 44.1–768kHz, 16–32-bit, Stereo
OPTICAL, COAXIAL RCA, COAXIAL BNC & AES/EBU:
PCM 44.1kHz–192kHz, 16–24-bit
DSD (DoP, DSD over PCM) 2.8MHz, 1-bit

I am familiar with the output signal formats transmitted from the U2… The question is about whether or not unfettered 1-bit DSD is important to you…?. Because this will determine the DAC capabilities… The U2 is not a DAC, it is a streamer… Again, if you are considering a Lumin DAC, they don’t support a simple, pure 1-bit PDM (DSD) signal path to the output circuitry… The ESS DAC(s) that Lumin employ in their devices converts all DSD to PCM (multi-bit) before presenting the signal to the output circuit.

:notes: :eye: :headphones: :eye: :notes:

Hi, @Agoldnear,
thank you for your help. I will consider this. I will not buy a Lumin DAC. Lot of DACs convert the DSD input to PCM before analog conversion.
Do you think that is important?