LUMIN - Audiophile Network Music Player

[One and a half]

Today June 13, Lumin app upgraded to 13.a, there's nothing on the a version on the site, can @wklie update to what the fixes are? 

SQ is a little different I would say, not as accurate, small difference but noticeable. Leedh processing is off.

[wklie]

Minor compatibility fix for a few USB DAC.

 

Please power cycle your DAC.

[BlueSkyy]

I noticed the new f/w on Wednesday June 10th.  No noticeable SQ change for me as I am currently using analog but will check S/PDIF and USB later.

[Liam]

Leedh digital volume has raised my system performance significantly. Overall clarity is very noticeably improved.  Bass has much better ‘form’ and relationship with the overall frequency response. There is great life and rhythmic vitality in a natural unforced way without unwanted price paid. Volume is at 100% in settings and my amp pre volume set much higher than normal, and with the app circular Volume set to 60 I can listen comfortably down the hallway in the next room.  Even thus removed from the system the improvements are clearly audible. 

[BlueSkyy]

The ability to set maximum volume has allowed me to safely remove my AV processor, arguably not the best solution for listening to 2-channel music, and go directly to the front L/R monos directly.  This change has enhanced my listening pleasure more than I could have imagined.  More so  than a couple of drams of fine scotch or, if it were legal where I live, a couple of ................ but I'll leave it at that.

 

I've always thought that every preamplifier, line stage, etc. in existence, regardless of how good it is, has a sonic signature of its own, and I am closer to the "Lumin sound" than I was able to achieve in the past.  I am particularly pleased with the noticeably increased "three-dimensionality" of the sound stage that the Lumin provides.

 

Finally, Leedh processing is also providing benefits over the standard volume control in the Lumin that I am thoroughly enjoying.

[wizardofoz]

I just made the change from my D1 bypassing the Cambridge Audio Azur 840E which is still connected to balanced outputs but my Active Crossovers (Linkwitzlab.com) LX521.4 ASP are only running RCA inputs so I have now connected the ASP directly to the RCA outs on the D1 and enjoying the change very much - despite Roon now showing DSP volume in the signal path.

 

I might not be able to keep it this way as the preamp allows for connection of other sources most importantly my turntable and some options for other DAC for TV or CD transports etc. but if I use a separate speaker setup for the other needs then its a workable solution as I do as noted below. 

 

For my other system where I have another D1 using a Linkwitzlab Orion setup for stereo and an 5.1 HT speaker setup for TV/Movies this will be perfect....just need to reachable the ASP

[smodtactical]

Hey guys would appreciate some help.  So I just got the lumin u1 mini and it seems my AES out doesn't work. My USB out and Coax out work fine with my dac but when I switch to AES out there is no sound in my system. My system is:

 

PC (roon core) -> ethernet -> U1 mini -> AES/Coax/USB -> Denafrips terminator -> HE9 -> HD800S.

 

I tried the pi streamer -> sotm dx usb -> AES -> rest of chain and this works fine and I have been using this AES cable without issues for 1 year (d110 silversonic).

 

Could it be the AES output is just broken? Would appreciate help, thank you! Btw. I got it from an authorized dealer and he is trying to help me figure this out as well but suggested I post here to get as much help as possible.

[pl_svn]

is AES Output enabled in "Digital Audio Output Setting" and, not sure this is required, is USB disconnected?

[smodtactical]

Yes I checked in the lumin app and all the outputs including AES are turned on. And initially when I tested AES the usb was not connected to the lumin.

[pl_svn]

try enabling just AES (and, just for good measure, disconnect everything else)

if it doesn't work... we'll have to wait for @wklie, sorry

[wizardofoz]

Given that Peter is in HongKong he is probably well asleep by now...as should I be as I’m in the same time zone, it’s 4AM!!! 😴

[smodtactical]

No problem will wait for him. Will try that @pl_svn Thanks

[smodtactical]

Lumin app is telling me to do firmware update to v 13 i think. Should I do it ?

[BlueSkyy]

I did it.  But I am always an early adopter of everything.  I did it last Wednesday with no regrets.  13.0a for me.

[smodtactical]

Another problem I have is the lumin app doesn't seem to recognize the files on my home pc. It is connected to my network via ethernet. Lumin player plays these files on my pc via roon no problem (via coax).

[BlueSkyy]

When you select a library in the Lumin app do you see your PC as a library server?  Do you have minimserver or the equivalent running on your PC?

[One and a half]

16 hours ago, wklie said:

Minor compatibility fix for a few USB DAC.

 

Please power cycle your DAC.

A restart of the DAC helped, cheers. 

[One and a half]

Am wondering if the Leedh volume control is a blessing with a reduction of output voltage levels to avoid analog overload (or level matching) which seems to be a real problem for most systems. doesn't take much for overloads to occur and the effects can vary considerably, always for the worse.

 

A lot of DACs have fixed outputs of 2V minimum, and keep going higher, rather than the lower 350-500 mV with high gain stages in pre-amps. Once there's analog, levels are a dog's breakfast.

[wklie]

8 hours ago, smodtactical said:

Hey guys would appreciate some help.  So I just got the lumin u1 mini and it seems my AES out doesn't work. My USB out and Coax out work fine with my dac but when I switch to AES out there is no sound in my system. My system is:

 

PC (roon core) -> ethernet -> U1 mini -> AES/Coax/USB -> Denafrips terminator -> HE9 -> HD800S.

 

I tried the pi streamer -> sotm dx usb -> AES -> rest of chain and this works fine and I have been using this AES cable without issues for 1 year (d110 silversonic).

 

Could it be the AES output is just broken? Would appreciate help, thank you! Btw. I got it from an authorized dealer and he is trying to help me figure this out as well but suggested I post here to get as much help as possible.

 

Please disconnect USB cable.  Use Lumin app About function of the U1 MINI, tap and hold Factory Reset.  Do not change any setting after factory reset.

 

Connect the AES, switch your DAC to AES input, try playing different sample rates, e.g. 16/44.1, 24/96 (not DSD).  Please make sure you disconnect USB first before playing to AES / BNC / coaxial / toslink outputs.

 

If this does not work, please verify your AES cable and AES input of DAC works from other sources, or seek help from the dealer.

 

We test every output before we ship a unit.  However, occasionally after shipping things can go wrong.

 

For Lumin app to see music files on the PC, please install the free MinimServer on the PC.

[wklie]

39 minutes ago, One and a half said:

Am wondering if the Leedh volume control is a blessing with a reduction of output voltage levels to avoid analog overload (or level matching) which seems to be a real problem for most systems. doesn't take much for overloads to occur and the effects can vary considerably, always for the worse.

 

Yes, it can be used this way.  A few months ago (before we launched the Leedh Processing Volume) I helped a customer.  After decreasing Lumin volume to level match with his previous DAC, then he is happy with the SQ.

[smodtactical]

41 minutes ago, wklie said:

 

Please disconnect USB cable.  Use Lumin app About function of the U1 MINI, tap and hold Factory Reset.  Do not change any setting after factory reset.

 

Connect the AES, switch your DAC to AES input, try playing different sample rates, e.g. 16/44.1, 24/96 (not DSD).  Please make sure you disconnect USB first before playing to AES / BNC / coaxial / toslink outputs.

 

If this does not work, please verify your AES cable and AES input of DAC works from other sources, or seek help from the dealer.

 

We test every output before we ship a unit.  However, occasionally after shipping things can go wrong.

 

For Lumin app to see music files on the PC, please install the free MinimServer on the PC.

 

 

Hi Peter before I do the reset should I disconnect my AES and coax cable as well which are now connected?

 

Will install minimserver.

[wklie]

12 minutes ago, smodtactical said:

before I do the reset should I disconnect my AES and coax cable as well which are now connected?

 

They should not matter.  You can leave them in place or disconnect them.

[smodtactical]

2 hours ago, wklie said:

 

They should not matter.  You can leave them in place or disconnect them.

 

I clicked about in the app but i dont see any factory reset option.

[wklie]

@smodtacticalAbout of U1 MINI, not about of app.

[smodtactical]

2 minutes ago, wklie said:

About of U1 MINI, not about of app.

 

Sorry I am totally confused? Are you talking about a hardware button on the actual unit?