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  1. #151
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    Re: Lumin P-1 arrives tomorrow

    Quote Originally Posted by No Quarter View Post
    Had to set the P1 and Nagra on granite slabs for now, due to cable lengths.
    A lovely and "simple" system. The nice thing about simple is..it always works. In my experience, the P1 is an excellent preamplifier.

  2. #152
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    Re: Lumin P-1 arrives tomorrow

    Thank you Pumacat, yes simple but great sounding is what I am going for. I asked my dealer what he thought about my next improvement, if I were to look for one.
    He said he would add the Kharma Elegance speaker cables, which use the same cables as inside my speakers.
    He also mentioned the Classic Preamp as a big upgrade, just using the P1 as a streamer.
    The pre is 22k, the speaker cables are 3.5 K.
    Speaker cables is an easier pill to swallow…
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  3. #153
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    Re: Lumin P-1 arrives tomorrow

    Hi all,

    A few months ago I purchased a P1 (on a recommendation by Puma Cat). It replaced a Lumin U1 and a Berkeley Alpha Dac2 MQA. This has been one of my very favorite audio purchases (over several decades of such purchases!). It was motivated in part by a desire to simplify my system. The P1 has done that in spades; it now handles all my inputs (cable box, apple TV, Oppo disc player), and it sounds great. In my present configuration, I view the P1 as a 'quasi-preamp'. It feeds my Rowland Continuum S2 integrated amp. I say 'quasi' because, at the moment, I have the P1 set at fixed 100% volume output, and the Rowland handles the volume control. But I have flip-flopped back and forth between this and using the P1 Leedh volume control, with the Rowland set at unit gain. The latter seems superior in a number of ways (detail, resolution, spaciousness), but the former seems a bit more relaxed. Maybe my ears are just used to a certain amount of distortion. With everything now perfectly burned in, it's probably a good time to go back and try Leedh processing again.

  4. #154
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    Re: Lumin P-1 arrives tomorrow

    Quote Originally Posted by rowlegg View Post
    Hi all,

    A few months ago I purchased a P1 (on a recommendation by Puma Cat). It replaced a Lumin U1 and a Berkeley Alpha Dac2 MQA. This has been one of my very favorite audio purchases (over several decades of such purchases!). It was motivated in part by a desire to simplify my system. The P1 has done that in spades; it now handles all my inputs (cable box, apple TV, Oppo disc player), and it sounds great. In my present configuration, I view the P1 as a 'quasi-preamp'. It feeds my Rowland Continuum S2 integrated amp. I say 'quasi' because, at the moment, I have the P1 set at fixed 100% volume output, and the Rowland handles the volume control. But I have flip-flopped back and forth between this and using the P1 Leedh volume control, with the Rowland set at unit gain. The latter seems superior in a number of ways (detail, resolution, spaciousness), but the former seems a bit more relaxed. Maybe my ears are just used to a certain amount of distortion. With everything now perfectly burned in, it's probably a good time to go back and try Leedh processing again.
    Congratulations! That's so great to hear.. Very pleased that a recommendation worked out so well for you.

    The P1's pretty amazing, isn't it? I am very happy with my decision to get one. It made my system considerably simpler, and the nice thing about simple is...it always works.

    Plus it sounds absolutely fabulous: one of the best-sounding DACs and preamps I've ever heard, but my guess is...you've already experienced that.

    And, yes, my suggeestion would be to go back and try LEEDH processing again.

    Oh, BTW, it needs 500 hours to fully burn-in, so it's gonna get...EVEN better. 👍

  5. #155
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    Re: Lumin P-1 arrives tomorrow

    I thought there was another P1 thread running, but I couldn’t find it, so I will bring this one back to life. Since owning the P1 I have been using turtle slow internet through the old phone lines in my apartment building. I was only able to stream 16/44.1 from Qobuz because any high res would stutter. Last week I found a new provider that goes through cable (bnc) and now I get 1 gig speeds. Now I can stream 4 k video and high res Qobuz at the same time with no buffering or stuttering. Wow! Qobuz sounds WAY better now, so I have been kind of blown away by how good my P1 can actually sound.
    This got me thinking maybe there is more to be had here. I noticed an option in settings to upscale to DSD 512. Should I be doing this for even better sound?
    Has anyone tried upscaling with their P1, and any advice about it?
    Not really sure where to start, like does this only work on local stored files, or will it also upscale Qobuz?
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  6. #156
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    Re: Lumin P-1 arrives tomorrow

    Another question, I have an album on a thumb drive that has been upscaled using PGGB software to 32 bit 705 kHz. The P1 will not play it because it is beyond its limits.
    Would it be worth it to try using PGGB to upscale some files to DSD 512, or 32 bit/384 KHz to see if this sounds better than using the P1 upscaling?
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  7. #157
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    Re: Lumin P-1 arrives tomorrow

    You may try DSD upsampling for 44.1kHz music, and see whether you like it or dislike it. It works for local NAS / USB drive and Tidal / Qobuz excluding MQA.
    Peter Lie
    LUMIN Firmware Lead

  8. #158
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    Re: Lumin P-1 arrives tomorrow

    Quote Originally Posted by No Quarter View Post
    <snip> Now I can stream 4 k video and high res Qobuz at the same time with no buffering or stuttering. Wow! Qobuz sounds WAY better now, so I have been kind of blown away by how good my P1 can actually sound.
    Yes, it sounds...amazing. In my experience, its every bit as good as my First Sound dual-mono preamp and my Lampizator Baltic 3 DAC. All in a single box. Plus the LEEDH digital volume technology is the best-sounding "volume control" I've ever heard.

    Apologies for mentioning this again but, IMHO, it's an important point: implementing the Lumin P1 & my Constellation Inspiration integrated, I was able to remove....15 bits of gear from main rack alone. And now...it always works and sounds fantastic. What I've learned the hard way is that the "simplest solutions"...sound the best.

    Linn-Sondek, Roy Gandy at Rega, and Nelson Pass have been espousing for decades now the "simpler is better" philosophy regarding turntable & amplifier design, and...they're right. 👍

    Quote Originally Posted by No Quarter View Post
    This got me thinking maybe there is more to be had here. I noticed an option in settings to upscale to DSD 512. Should I be doing this for even better sound?
    Has anyone tried upscaling with their P1, and any advice about it?
    Not really sure where to start, like does this only work on local stored files, or will it also upscale Qobuz?
    Sorry, I can't say as I simply don't worry about it. I just have my P1 play the digital music recordings in my collection at their "native" bit-depth/sampling rates.

    Just to put this into in context, the best-sounding digital music files I've ever heard are the "Redbook" 16/44 recordings that are the Audio Wave Blue Note XRCD24 jazz recordings. This entire series was re-mastered by Alan Yoshida, one of the developers of the XRCD24 format & mastering protocol, and, IMHO, one of the very best mastering engineers in the music industry. Owning and listening to this incredibly good-sounding and wonderful collection of jazz recordings has taught me that it's the quality of the mastering that matters most, not the specific "digital format".

    Here's a link to this format by Audio Wave: What We Do - Audio Wave Music

    Just my 2˘. Cheers.
    Ĥѱ = 𝐸ѱ

  9. #159
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    Re: Lumin P-1 arrives tomorrow

    Thanks for the reply guys,I guess I will do a little experimenting when I get time. Puma Cat, so you are buying CD’s from that site and just throwing them on a sever, no upscaling?
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  10. #160
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    Re: Lumin P-1 arrives tomorrow

    Quote Originally Posted by No Quarter View Post
    Thanks for the reply guys,I guess I will do a little experimenting when I get time. Puma Cat, so you are buying CD’s from that site and just throwing them on a sever, no upscaling?
    Yup! I buy the Audio Wave Blue Note XRCD24 "Redbook" discs, rip 'em with XLD, and put the ripped digital files on the hard drive for Alita, Battle Angel (my Akasa-cased NUC/Roon Core). Here's a pic of Alita, Battle Angel.



    Diagram of the setup in the "remote server room" (RSR). Alita is connected via a Sigma Ethernet cable to EtherREGEN (ER), and then I run via single-mode Corning ClearCurve LC/LC fiber out ER from the RSR into the SFP cage in the back of the P1. I use Planet Tech TL-40 single-mode optical transceivers at the source and destination ends. I use Corning ClearCurve single-mode fiber because this is what Peter Lie of Lumin recommended, and...Peter was right.



    Simple set-up And, simple is...good. 👍
    Ĥѱ = 𝐸ѱ

  11. #161
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    Re: Lumin P-1 arrives tomorrow

    Quote Originally Posted by Puma Cat View Post
    Yup! I buy the Audio Wave Blue Note XRCD24 "Redbook" discs, rip 'em with XLD, and put the ripped digital files on the hard drive for Alita, Battle Angel (my Akasa-cased NUC/Roon Core).



    Simple. And, simple is...good. 👍
    I no longer have a server, used to own a Naim Core, now I just have a 3 TB external hard drive plugged in the back of the P1. Honestly I mostly listen to internet radio and Qobuz.
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  12. #162
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    Re: Lumin P-1 arrives tomorrow

    Yep, an HD plugged into the back of the P1 will work, too.

    Simple solution, and simple solutions work the best. 👌
    Ĥѱ = 𝐸ѱ

  13. #163
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    Re: Lumin P-1 arrives tomorrow

    Quote Originally Posted by wklie View Post
    You may try DSD upsampling for 44.1kHz music, and see whether you like it or dislike it. It works for local NAS / USB drive and Tidal / Qobuz excluding MQA.
    Peter do I just enable it and it should work right away, or do I need to power down or something?
    I think it says custom, when you click on it there is an option to upscale to various DSD levels…
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  14. #164
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    Re: Lumin P-1 arrives tomorrow

    Well so much for trying upscaling. Came home and turned the P1 on and a window popped up saying an update is available, so I hit yes. It had the spinning wheel for a while, then it kind of froze with just the word Lumin on the screen. Can not get it to do anything now, even powered down with the switch on the back and powered off my switch.
    Nothing is happening…HELP!
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  15. #165
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    Re: Lumin P-1 arrives tomorrow

    Please check PM.
    Peter Lie
    LUMIN Firmware Lead

  16. #166
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    Re: Lumin P-1 arrives tomorrow

    I just want to say thank you publicly to Peter. He saw my plea for help, sent me a fix right away and I am now back up and running. Where else do you find such outstanding service?
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  17. #167
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    Re: Lumin P-1 arrives tomorrow

    Quote Originally Posted by No Quarter View Post
    I just want to say thank you publicly to Peter. He saw my plea for help, sent me a fix right away and I am now back up and running. Where else do you find such outstanding service?
    I could not agree more. It's one of the key reasons I bought a Lumin product. It's not just about a product's "functionality and features", it's also about customer service and support, especially for products that can be as complex and have as long a service life as audio products.

    And, the responsiveness, support, and expertise from Peter has always been...absolutely outstanding. 👊 👍 👏
    Ĥѱ = 𝐸ѱ

  18. #168
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    Re: Lumin P-1 arrives tomorrow

    Ok I am ready to try upscaling, I made a Qobuz playlist named test songs to upscale.
    Went to options and I see these figures, do I change the highlighted ones to something new?
    The only one I changed so far is pcm output bit depth…changed it from native to 24 bit.
    When I play the first song, in the upper left it says 16 bit (24 bit) in brackets,but on the Lumin P1 screen it still says 16 bit.
    Is this right Peter? How do I get it to upscale to DSD 512?
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  19. #169
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    Re: Lumin P-1 arrives tomorrow

    Not sure why I can’t seem to attach a photo, must be doing something wrong?
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  20. #170
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    Re: Lumin P-1 arrives tomorrow

    Set re-sampling to Custom.

    Set all rows to DSD128.
    Peter Lie
    LUMIN Firmware Lead

  21. #171
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    Re: Lumin P-1 arrives tomorrow

    Thank you Peter, will give that a try, what about the last row where I changed to 24 bit?
    I can confirm this worked, easy to give a try. In the upper left corner on IPad it now says
    44.1 Khz (5.6 Mhz)
    16 bit (1bit)
    1411.1 Mbps
    PCM to DSD
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  22. #172
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    Re: Lumin P-1 arrives tomorrow

    DSD is 1 bit. Please ignore the 24 bit setting. It's not relevant for most people.
    Peter Lie
    LUMIN Firmware Lead

  23. #173
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    Re: Lumin P-1 arrives tomorrow

    Quote Originally Posted by wklie View Post
    DSD is 1 bit. Please ignore the 24 bit setting. It's not relevant for most people.
    Thanks Peter, I have not done enough listening to make an accurate opinion yet on this.
    Another question for you… I see on the P1’s product page it lists under digital output:
    USB
    BNC/SPDIF
    HDMI
    Now USB seems to allow the highest output numbers, but I do not see an output on the back of the unit. Does it share the same USB input socket, yet you may need to change something in settings?
    I am thinking of trying a Weiss Dac 204 between my P1 and Nagra amp so would like to start with the highest value coming out of the P1.
    Has anyone tried an external Dac with their P1?
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  24. #174
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    Re: Lumin P-1 arrives tomorrow

    For P1 output to a USB DAC, please use the USB type A port.

    Note that you can only output to DAC from network streaming, not from other audio inputs. P1 is not a "digital preamp" (that people need for DSP speakers).
    Peter Lie
    LUMIN Firmware Lead

  25. #175
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    Re: Lumin P-1 arrives tomorrow

    Quote Originally Posted by wklie View Post
    For P1 output to a USB DAC, please use the USB type A port.

    Note that you can only output to DAC from network streaming, not from other audio inputs. P1 is not a "digital preamp" (that people need for DSP speakers).
    So the port that I just used to rescue my P1 is also an output?
    Will I be able to control the volume still using the P1 into an external Dac?
    Not sure what you mean when you say it is not a digital preamp.
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

  26. #176
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    Re: Lumin P-1 arrives tomorrow

    P1 analog/digital/network input -> P1 analog output and volume control: yes

    P1 network input -> P1 USB/BNC output and volume control: yes

    P1 analog/digital input -> P1 USB/BNC output: no

    To understand "digital preamp" from a DSP speaker perspective, check out Kii Control.
    Peter Lie
    LUMIN Firmware Lead

  27. #177
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    Re: Lumin P-1 arrives tomorrow

    Quote Originally Posted by wklie View Post
    P1 analog/digital/network input -> P1 analog output and volume control: yes

    P1 network input -> P1 USB/BNC output and volume control: yes

    P1 analog/digital input -> P1 USB/BNC output: no

    To understand "digital preamp" from a DSP speaker perspective, check out Kii Control.
    Thanks again Peter.
    Lumin P1,Nagra Classic Amp, Kharma DB 7’s

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