LUMIN - Audiophile Network Music Player

[Distinctive]

If you suspect a possibly bad contact with the power cable, check that the cable is not abnormally hot.

The most plausable explanation is probably that the A1 got initialized and restarted.

[wklie]

Documentation / User's Manual for Lumin / Esoteric Sound Stream app:

 

LUMIN - App

 

http://www.esoteric.jp/products/esoteric/net/app/ESOTERIC_Sound_Stream_OM_E_vA.pdf

[BlueSkyy]

Hi, I currently have my S1's balanced output feeding my main system's L-R front speakers. I have a new headphone amp, an Audeze combination DAC/Headphone amp, that I would like to connect to the S1 via the unbalanced outputs.

 

Because I don't want to disconnect the XLRs every time I use the headphones, I am wondering if there are any issue with keeping the balanced outputs connected to my main preamp (which will remain powered down) when using the unbalanced outputs to drive the headphone preamp. My gut reaction is that it would be ok because the two output are well-isolated within the S1 but I'd like to hear it from Lumin engineering or someone who has done the same thing.

 

Thank you!

[jcn3]

Hi, I currently have my S1's balanced output feeding my main system's L-R front speakers. I have a new headphone amp, an Audeze combination DAC/Headphone amp, that I would like to connect to the S1 via the unbalanced outputs.

 

Because I don't want to disconnect the XLRs every time I use the headphones, I am wondering if there are any issue with keeping the balanced outputs connected to my main preamp (which will remain powered down) when using the unbalanced outputs to drive the headphone preamp. My gut reaction is that it would be ok because the two output are well-isolated within the S1 but I'd like to hear it from Lumin engineering or someone who has done the same thing.

 

Thank you!

 

i do the same thing with my schiit gungnir multibit -- it's not an issue at all. i would expect the same from the lumin.

[Distinctive]

i do the same thing with my schiit gungnir multibit -- it's not an issue at all. i would expect the same from the lumin.

It will probably work, but I would check that the connection of SE outputs do not unbalance the XLR.

[wklie]

Because I don't want to disconnect the XLRs every time I use the headphones, I am wondering if there are any issue with keeping the balanced outputs connected to my main preamp (which will remain powered down) when using the unbalanced outputs to drive the headphone preamp.

 

The official position is that the audio quality may be degraded if both balanced and unbalanced outputs are used simultaneously:

http://www.computeraudiophile.com/f22-networking-networked-audio-and-streaming/lumin-audiophile-network-music-player-14280/index38.html#post467162

 

However, if one of the output is connected to a preamp that has no power, I think it shouldn't be much of an issue.

[BlueSkyy]

The official position is that the audio quality may be degraded if both balanced and unbalanced outputs are used simultaneously:

http://www.computeraudiophile.com/f22-networking-networked-audio-and-streaming/lumin-audiophile-network-music-player-14280/index38.html#post467162

 

However, if one of the output is connected to a preamp that has no power, I think it shouldn't be much of an issue.

 

Thank you for the link. In the response, Lumin's engineer used the word "active" to describe potential sound degradation using both the balanced and unbalanced outputs simultaneously. Of course the words "active" and "connected" mean different things and I am not entirely sure if he intended this nuance or not. Even if one of the two connected pieces of equipment, preamp and headphone amp in my case, is turned off (inactive), it still could present a load on the respective Lumin output thereby affecting the overall sound quality.

 

That being said, I am enjoying the sound of the connected headphone amp as I type and I'll listen to the main system after the house wakes up from its slumber.

[BlueSkyy]

Thank you for the link. In the response, Lumin's engineer used the word "active" to describe potential sound degradation using both the balanced and unbalanced outputs simultaneously. Of course the words "active" and "connected" mean different things and I am not entirely sure if he intended this nuance or not. Even if one of the two connected pieces of equipment, preamp and headphone amp in my case, is turned off (inactive), it still could present a load on the respective Lumin output thereby affecting the overall sound quality.

 

That being said, I am enjoying the sound of the connected headphone amp as I type and I'll listen to the main system after the house wakes up from its slumber.

 

After waking up, I remembered that my McIntosh preamp has a "Zone B" output that is tailor-made for use with my headphone system so I no longer have to have both Lumin outputs connected. Thanks to everyone for their help and comments!

[BlueSkyy]

The official position is that the audio quality may be degraded if both balanced and unbalanced outputs are used simultaneously:

http://www.computeraudiophile.com/f22-networking-networked-audio-and-streaming/lumin-audiophile-network-music-player-14280/index38.html#post467162

 

However, if one of the output is connected to a preamp that has no power, I think it shouldn't be much of an issue.

 

I am still continuing to refine my system to integrate the headphone amp using the Lumin S1 only. My question is about the capabilities of the balanced output. Can the Lumin S1 properly drive two loads on the balanced output via a Y-splitter without degradation assuming the load impedance is not extraordinarily low? Alternately, is there some sort of a "black box" that would all two loads to be connected?

[wklie]

Can the Lumin S1 properly drive two loads on the balanced output via a Y-splitter without degradation assuming the load impedance is not extraordinarily low? Alternately, is there some sort of a "black box" that would all two loads to be connected?

 

I suspect that using a Y-splitter may be even more harmful to sound than a simultaneous connection.

[BlueSkyy]

I suspect that using a Y-splitter may be even more harmful to sound than a simultaneous connection.

 

I suspect you are right! I'll sacrifice a little convenience and work the connection issues downstream of the Lumin at the preamp part of the chain.

[skyline]

I have an S1. It's lovely.

 

I use a Waversa hub to regenerate the ethernet before feeding it. Without it, it's not even the same streamer.

 

I also ground it with an Entreq Olympus.

[BlueSkyy]

I just realized that I have never powered down my Lumin S1 since I've owned it which is well over a year now. I don't keep the display on at all, however, nor is there any data streaming to it during my non-listening periods.

 

Is this a bad idea? I good idea? Other than not being as "green" as I could be, what are the ramifications, if any, of keeping it energized all the time?

[wklie]

To err on the side of caution, if you live in an area with unstable electricity supply or possibility of power surges, I think turning off the power to Lumin when not using it is safer. However, there are plenty of Lumin users who like to keep their equipment always powered on, along with the rest of their gear.

[BlueSkyy]

To err on the side of caution, if you live in an area with unstable electricity supply or possibility of power surges, I think turning off the power to Lumin when not using it is safer. However, there are plenty of Lumin users who like to keep their equipment always powered on, along with the rest of their gear.

 

Good to know! All my "critical" stuff including the Lumin is on a very robust UPS so I can weather the bad stuff coming in on the AC line.

[skyline]

I thought DAC chips need at least 24 hours powered on to stabilize?

 

I leave mine on all of the time. One of the advantages of solid state.

[skyline]

Definitely sounds better powered on all of the time, versus several hours of warm up for a listening session.

[BlueSkyy]

I've never turned mine off but you could be right!

[ESL]

It's exactly one year since the long-departed psme promised "Roon support will be coming soon!" in post #956 of this thread. I would just like clarity from someone in management at Lumin rather than engineers that come and go. I love my Lumin but not as much as Roon.

So, are you going to support Roon or not?

Obviously Pixel Magic has some people problems judging by the regular job ads in jobsDB.com for the same skills over the last year but a year is quite long enough to make Lumin a Roon endpoint if it is indeed possible and you have the will. The statement was made but there is clearly a problem which you should share IMO because Roon enthusiasts/Lumin owners need to make equipment decisions.

So, please tell me clearly:

1. Is it currently possible to support Roon with your architecture?

2. Are you going to do it?

3. If so, when?

Thanks

[wklie]

As the Firmware Lead, I can say that Lumin remains committed to add support for Roon Ready. I'm not from marketing so I'll not promise anything before it's ready. Schedule decisions are not for us to make.

[BlueSkyy]

That's good to hear wklie! As firmware lead, however, I am sure you confirm whether or not the Lumin (S1 in my case) architecture allows for supporting Roon. Can you confirm this?

Thank you!

[pisatel]

Hi, someone has a problem like mine:

After installing Lumin app 6.0.4 appeared exactly the same problem with the imposition of the cover on the blank image as it was earlier versions Lumin app 3.0.5 and 3.0.6. it was described in the messages 824, 850, 851 and 853. Also 3.0.4 (if I remember correctly) did not have the cover image bug. The delay is not the problem. The problem is that it shows an empty picture and then the actual cover image scrolls up, over the empty picture.

 

who is now engaged in technical support, instead psme?

many times wrote pixel magic but received no response.

[wklie]

I hope to have Roon Ready for most (if not all) models.

[ESL]

As the Firmware Lead, I can say that Lumin remains committed to add support for Roon Ready. I'm not from marketing so I'll not promise anything before it's ready. Schedule decisions are not for us to make.

 

I appreciate your reply, wklie, but you gave a similar answer a month or so back. I think we know it's you who be giving us the solution when it comes and I'm sure it'll be great but the point is, when? It's been a year already. I'm looking for a response from someone who does control scheduling. Surely someone at Lumin can commit to a timescale after one year?

[wklie]

The delay is not the problem. The problem is that it shows an empty picture and then the actual cover image scrolls up, over the empty picture.

As long as the cover art show ups eventually, this would not be considered as a bug, as psme stated:

http://www.computeraudiophile.com/f22-networking-networked-audio-and-streaming/lumin-audiophile-network-music-player-14280/index35.html#post420280

 

However, even though it is correct, we shall see if any improvement can be done.