Lumin U1MINI

fguinaldo said:
LEEDH PROCESSING.
Could explain a little how this system works.
I do not understand that if Lumin is at maximum volume this does not work.
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Hi there.

Digital volume control algorithms are used to attenuate volume. When LUMIN is at 100% (assuming you don't have a max limit set), there is no attenuation needed, so no algorithm is required.

At anywhere <100% the default volume reduction algorithm is now Leedh Processing, but if you turn Leedh off, then it will use the original volume control algorithm.

Please read this page for some more info: LUMIN - Leedh Processing
We also have a bit of info regarding volume and Max Volume on here: LUMIN - Settings
 
Hello this is my first post.

Just recently purchased U1 mini and waiting for delivery. Just want to ask what is the best/preffered way to connect my Hegel H390 int amp to Lumin U1 mini digital out for best SQ reproduction? USB or COAX RCA?
Thank you for any response.
 
This is setup dependent, please try both (when doing Coax test, please disconnect USB, and vice-versa) and see which sounds better to you after you've burned-in the U1 MINI for at least several days.

If you need to play DSD128, then you have no choice but to use USB.
 
Hi Peter, somehow I found there is lagging while using the Lumin app in iPhone but not in iPad. When I load up the playlist, it loaded the song like one by one instead take only a few secs to finish loading the song list. Do you know is it due to the iPhone and. iPad issue?
 
hatateru said:
Hi Peter, somehow I found there is lagging while using the Lumin app in iPhone but not in iPad. When I load up the playlist, it loaded the song like one by one instead take only a few secs to finish loading the song list. Do you know is it due to the iPhone and. iPad issue?
Click to expand...

Please set different SSID (name) for the 2.4GHz and 5GHz in the WiFi router. In the iPhone, change the WiFi to use the 5GHz SSID. See if this works better.
 
Hello,

I'm looking to replace my Macbook pro with Lumin U1 mini to feed my DAC (Playback Designs MPS-3). Has anyone tried Mutec MC-3+usb with U1 mini with good result?
 
Although I have not received report of using Lumin with Mutec MC-3+USB, the U1 (MINI) firmware should recognize MC-3+USB and should be native DSD256 compatible.
 
Thank you Peter.
Seen U1 mini has several digital outputs, which one would be the best SQ as my DAC has USB, Coax, Aes/Ebu inputs.
 
This is setup dependent. Some people prefer AES, some people prefer USB. Note that only USB supports DSD128 and above.
 
Hi Peter,

Is the U1mini compatible with the sonicTransporter, a Linux computer running minimserver? Would the sonicTransporter with attached USB drive work better than a NAS running minimserver?

Thank you!
 
Anything that can run MinimServer should be compatible. Personally I prefer a fanless setup. Given a choice between a fanless SonicTransporter and a normal NAS with fan, I prefer a fanless device. Given a choice between a fanless SonicTransporter and a fanless NAS such as HS-453DX, you may consider price, CPU, and other features that you may use. If you foresee the possibility of using Roon, then get the SonicTransporter instead of a Celeron-based NAS.
 
Re: Lumin U1 MINI

@wklie

Hi Peter, the footers on U1 mini are screwed in or pasted into the chassis with tapes?

Sent from my Mi A1 using Tapatalk
 
Re: Lumin U1 MINI

Hi dznuts,

Thanks for confirming that the stock footers are screwed in. Unfortunately for me, these stock footers are totally stuck and cannot be removed from chassis. I will have to position my other footers beside the stock footers instead.
 
The screws in the footers can be seen only after the rubber is peeled off.
 
From Roon forum Lumin U1 mini transport - Lumin - Roon Labs Community

I’m happy to share the first impressions after 4-5h of listening with my new U1 Mini.
The setup was simply U1 Mini > [USB] Chord Dave > Focal Utopia, more details at the bottom for the gear-heads like me.
I compared this to the sound using my PC to stream music to the Dave via Optical (my favorite so far with Dave). To be honest I didn’t have big expectations considering the claimed “immunity” of Dave to jitter and, to some extent, to RF noise.

So I started the listening session with some electronic music (Rone, Mirapolis) and at first I thought “mmmh, ok, no difference really”, but wait… that bass on the U1 is so much fuller and defined. Ok, good, let’s try something with more instruments in it.
With classic rock (The Rolling Stones, Blue & Lonesome and Rory Gallagher, Top Priority remastered 2017) the hints of a better sound continued: snappier bass, increased soundstage depth, definitely more realistic instrument reproduction.

But it’s with live music, especially with piano and guitar, that the U1 Mini really blew the PC out of the water.
In Band of Horses’ “Acoustic at the Ryman”, with the Lumin each piano note felt richer, you could really tell there was “more music” in them, if that makes sense at all. I guess it might have something to do with a better transient reproduction or a lower noise floor.
The U1 Mini also improved the feeling of space, and soundstage depth, as opposed to a flatter presentation of the PC.

Final result? More realism, no doubt. I found myself tapping with my hands on the desk more often, and this is a good sign!
Bravo Lumin, well done, I like this.

Other gear details:
Roon Core: NUC 10 i7 running as ROCK, with two SSDs (1 for OS, 1 for music storage)
The U1 Mini gets the Ethernet signal from a Netgear GS108 switch, powered by an iFi iPower 12V
Cables: stock power cable for Dave, Audioquest NRG X3 3ft for the U1 Mini, Norne Audio Draug Silver 5ft for the headphones, QED Reference USB 1m.
All the power chords are connected to 3 x Opera Audio Consonance PW-1 Mains Filters
Click to expand...
 
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