Lumin U1

[joeinid]

Welcome to the forum, thank you for joining.

[Phil A]

Ok, the Lumin U1 is working now!

I ran a 25 foot ethernet cable from another switch in another room to the U1 and it works fine so there is something going on with the switch at my audio rack. Interestingly, before I did that I did put the Lumin U1 in the place of another working device at my audio rack switch (my dac) using it's working ethernet cable and the Lumin was still not working.

Welcome to the forum. I had my house prewired (including Ethernet) and I have upgraded Ethernet cables going from the router (in my office) and then from the jack in back of my U1. If I move things around (e.g. dust), sometimes the connection to the wall jack will become slightly loose and I get the 'Network Error' message too.

[Sujay]

Hi, wonder if someone can help me with this problem. I brought a chord Dave home for audition. I am unable to stream music with the USB connected to the Dave through my U1. I have tried everything possible including keeping the lumin unsampling off but just can’t get the Dave to play in the DAC mode

any compatibility issues that I am not aware of or am I doing something incorrectly. Grateful for some help

[Mike]

Hi, wonder if someone can help me with this problem. I brought a chord Dave home for audition. I am unable to stream music with the USB connected to the Dave through my U1. I have tried everything possible including keeping the lumin unsampling off but just can’t get the Dave to play in the DAC mode

any compatibility issues that I am not aware of or am I doing something incorrectly. Grateful for some help

Nope. We use that setup in the store all the time. Make sure the DAVE is set to USB input.


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[Sujay]

Nope. We use that setup in the store all the time. Make sure the DAVE is set to USB input.


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I did. I cycled a couple of times to ensure it’s on USB. It shows as USB 768khz on the left hand top corner as per display1. But no music. Not sure if there is some setting in the Lumin U1 I am missing.

[Mike]

I did. I cycled a couple of times to ensure it’s on USB. It shows as USB 768khz on the left hand top corner as per display1. But no music. Not sure if there is some setting in the Lumin U1 I am missing.

You shouldn’t be on 768hz unless you have the M-Scaler or Blu2


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[Sujay]

Absolutely right! But it displays exactly that. There is no problem when I revert to my original DAC though. Strange!

[wklie]

Please power cycle both Lumin and Chord, try different cables, try different ports.

[Sujay]

Please power cycle both Lumin and Chord, try different cables, try different ports.

Will, do. Thanks!

[Sujay]

Hi,

I pulled the trigger on the upgraded power supply for my U1. It’s now been about a month and it is fully run in. In short, the upgrade is unbelievable- honest to God I had not idea a power supply upgrade will throw such results. I can clearly hear more information, with a better soundstage which is separated incredibly well. And oh the bass! The delineation of the bass lines is uncanny! Anyway, I will stop here as it’s beginning to get too hyperbolic lest people should wonder whether I am being sincere. But yes, truly special imo.

i would recommend anyone sitting on the fence to take the plunge. Though expensive, it’s worth it

cheers

sujay

[DrPankratov]

Sujai,
Which LPSU do you use?

[Sujay]

Hi, I should have mentioned....I upgraded to the new lumin X1 power supply which is available as an upgrade for U1 users as well

[Andik777]

Hi, I should have mentioned....I upgraded to the new lumin X1 power supply which is available as an upgrade for U1 users as well

Hi, could you tell me what difference you noticed by changing the font, if there is a difference. Thank you.

[Sujay]

Hi, could you tell me what difference you noticed by changing the font, if there is a difference. Thank you.

Changing the Font? I guess you mean changing the power supply? Yes if so, my impressions are there in my previous post (#110). Clearly I could hear more detail, better bass delineation and soundstage width and specificity. I presume it’s all to do with lowering the noise floor even further.

[Andik777]

Changing the Font? I guess you mean changing the power supply? Yes if so, my impressions are there in my previous post (#110). Clearly I could hear more detail, better bass delineation and soundstage width and specificity. I presume it’s all to do with lowering the noise floor even further.

Yes, I was referring to the power supply. Thank you very much for the reply.

[stax]

Can I ask the price of the X1 power supply? Thanks.

[Phil A]

Can I ask the price of the X1 power supply? Thanks.

Believe it is $2k but not sure.

[ksveen73]

I recently bought a Lumin U1. Does anyone have experience with testing different cabling and cables (brands) between the streamer and Devialet 250 Expert Pro? I've read the balanced cabling could be preferred, but my DAC (Devialet) doesn't support DSD over AES/EBU. I believe RCA/coax OR USB would be the option for me. I really appreciate your opinions and comments.

[joeinid]

Welcome to the forum.

[wklie]

Devialet Firmware 8.1.0 manual states that the "entire Expert range" supports DoP over USB, XLR, toslink and SPDIF. Since Lumin also supports DoP on all outputs, playback of DSD music should be ok regardless of which connection type you use.

Please try both AES and USB for 44.1kHz music and see which sounds better to you. Note that these must not be connected simultaneously.

[ksveen73]

Thanks for quick update, @wklie! I totally agree with you, Devialet should be ok with DSD regardless of with connection. But; when reading the specs of 250 Pro Expert on Devialet's own site, the following comes up:
SUPPORTED FORMATS

Up to 32bits / 192kHz PCM (USB)
Up to 24bits / 192kHz PCM (AIR®, UPnP, AES/EBU, Coaxial)
Up to 24bits / 96kHz PCM (Optical)
Up to 1bit / 3.072000MHz DSD64 (USB, Coaxial)

That was the main reason for my questions

[wklie]

These are almost contradictory, but I'd believe the text. Please test AES and let me know.

[ksveen73]

Today, I got confirmation from Devialet support. You're absolutely right, of course, @wklie "Our AES/EBU input indeed supports DoP streams".

I just have to buy an AES cable and test Let you know how it goes.

These are almost contradictory, but I'd believe the text. Please test AES and let me know.

[ksveen73]

@wklie,
My Lumin U1 is now connected to my Devialet with a Weiss AES/EBU cable, playing DSD. The Devialet shows DSD64 in its display. Soundquality seems to be great.

[wklie]

Great! Please burn in the Lumin with repeat playback of playlist 7x24. Then you can compare AES against USB. When using AES or other SPDIF outputs, USB must be disconnected first.

[ksveen73]

I have now teste back and forward, changing between Weiss AES/Heimdall2 USB/Synergistic Research Galileo USB, always disconnecting the USB when listening with AES. The AES always sounds better than USB in my setup, with more transparency, dynamic and more defined bass.

Thanks for all your help regarding this matter, @wklie!

[DrPankratov]

I think to improve the performance of Lumin U1 and replace the power supply. My choice of Paul Hynes SR5 or Clones Audio Power Station Deluxe. Does anyone have any comparison experience or any thoughts?

[wklie]

Please consider the official X1 power supply upgrade for U1.

If you wish to have someone custom make a LPS for you, please note the special DC connector.

[DrPankratov]

Yes, I know it's a good LPSU, but its price matches the SR7. And I couldn't find reviews comparing to Clones and Paul Hynes.

[power]

Hi All.
Here is how Lumin App looks
after the upgrade to Android 10 of my Nokia 9 . Any idea?

[power]

Please consider the official X1 power supply upgrade for U1.

If you wish to have someone custom make a LPS for you, please note the special DC connector.

What is the list price for the X1 power supply upgrade ?

[Mike]

What is the list price for the X1 power supply upgrade ?

You would have to ask the Italian dealer/distributor.

[TheGiant]

Hi Peter, new to this forum and considering the U1 as my transport streamer. Reading the threads with the X1 PSU upgrade as a significant improvement, can’t Lumin offer the optional PSU upgrade at purchase so that the purchaser won’t have an extra PSU on hand and perhaps a price reduction for the trade in?

Thanks
Andre

Please consider the official X1 power supply upgrade for U1.

If you wish to have someone custom make a LPS for you, please note the special DC connector.

[goone55]

Hi,
I have a question, I have a U1 connected to EMM Lab dac versus usb cable, and xlr cable connected from emm dac to new active speaker since there is no volume control on the EMM dac.
Can I use the U1 for volume control? if yes what setting should I use?
Thanks

[joeinid]

Welcome to the forum

Hi Peter, new to this forum and considering the U1 as my transport streamer. Reading the threads with the X1 PSU upgrade as a significant improvement, can’t Lumin offer the optional PSU upgrade at purchase so that the purchaser won’t have an extra PSU on hand and perhaps a price reduction for the trade in?

Thanks
Andre

[goone55]

Thank you Joe, been joining this forum for 3 years but never post only do reading and research.

[joeinid]

So happy you finally spoke up Andre! Thank you.

[wklie]

I have a question, I have a U1 connected to EMM Lab dac versus usb cable, and xlr cable connected from emm dac to new active speaker since there is no volume control on the EMM dac.
Can I use the U1 for volume control? if yes what setting should I use?
Thanks

Yes.

Enable Volume Control and Leedh Processing Volume in Lumin app for U1.

Turn down the volume before playback.

[goone55]

Thank you Peter, I will give it a try