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Thread: Lumin T2

  1. #181
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    Re: Lumin T2

    Quote Originally Posted by audio.bill View Post
    Darrel - Congrats on your new Lumin T2! Definitely give it some time for everything to settle into your system, but if you still have any issue with the sound quality I'd suggest trying the T2 direct to your power amp. If I understand how you currently have it connected you're feeding the analog outputs of the T2 (which have already been converted to analog from the digital sources) to the analog inputs of the NAD M12. The M12 operates in the digital domain, so it converts its analog inputs back to digital for processing and volume control before converting its output back to analog to drive the power amp. So you're putting the analog output of the T2 through an additional conversion into digital only to then be converted back to analog again. Eliminating these two extra conversions could be beneficial to your system's level of performance, but the only way to know would be to try it. You'd have to use the Lumin T2's variable output to drive your power amp directly, or you could alternatively try an analog preamp in place of the NAD M12. The NAD is a fine piece of gear, but it may not be ideal to achieve the highest level of performance in your system's current configuration. Just something to consider.
    I went to bed rethinking your post. I will in the future have to move to a true analog preamp if I want to get the best out of the T2 and my system. From the start of my system about a year ago everything has been to keep elevating the music level. Streaming is the future at least for me. I spent 30 years with vinyl before getting into home theater. So, getting back to stereo I'll hit a few bumps along the way. I'll sort out the sound issues and start my next path to the right preamp. Thanks for the post.
    Speakers: Magico A3 with Cardas Clear Cygnus speaker cables
    Amp: Bryston 4BSST, Cardas Clear Cygnus power cable
    Preamp: NAD M12 Cardas Clear Cygnus power cable, XLR interconnect
    Lunin T2 Cardas Cat7 Ethernet cable Cardas Clear Cygnus power cable
    Keces P3 powering GigaFoilv4,Modem Supra Cat8 Ethernet cables
    CD/DVD: Oppo 205 Cardas Clear Cygnus power cable, XLR interconnect
    Subs: SVS SB1000 x 2 AudioQuest NRG-Y2 power cable
    HTPC/Streamer: Windows 10pro HTPC//Tital/Qobuz/JRivers via Roon Core USB/HDMI/iPad Pro
    Power Conditioner: Monster HTS5000,VanEvers model 85 Reference line cleaner, AudioQuest Niagra 1000 line conditioner

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  3. #182
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    Re: Lumin T2

    I've got the T2 huming along with the rest of my system. I had the Lumin hooked up to my VanEvers Model 85 power conditioner. It has my plasma and router hooked to it. I love the VanEvers for the performance it gives my Plasma tv. But, I was afaid it and the router my be part of the issue. I now have the T2 hooked up to the AQ Niagra 1000. I also got into the Lumin setup under options and switched the "Analog Audio Output Lever" to low. And MQA to passthrough. The MQA passthrough has nothing to do with any hashness I was hearing. But, the output to low seems to be the fix. Plus using the AQ I think isolates the T2 from any inerference. The sound with the addition of the Cardas cables and GigaFoil and Keces is now raised and very satifying.

    Plus Roon is a real treat with the T2
    Speakers: Magico A3 with Cardas Clear Cygnus speaker cables
    Amp: Bryston 4BSST, Cardas Clear Cygnus power cable
    Preamp: NAD M12 Cardas Clear Cygnus power cable, XLR interconnect
    Lunin T2 Cardas Cat7 Ethernet cable Cardas Clear Cygnus power cable
    Keces P3 powering GigaFoilv4,Modem Supra Cat8 Ethernet cables
    CD/DVD: Oppo 205 Cardas Clear Cygnus power cable, XLR interconnect
    Subs: SVS SB1000 x 2 AudioQuest NRG-Y2 power cable
    HTPC/Streamer: Windows 10pro HTPC//Tital/Qobuz/JRivers via Roon Core USB/HDMI/iPad Pro
    Power Conditioner: Monster HTS5000,VanEvers model 85 Reference line cleaner, AudioQuest Niagra 1000 line conditioner

  4. #183
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    Re: Lumin T2

    Darrel, can you tell me if there is a difference with the current configuration while switching from Analog Audio Output Level between Normal and Low? I have always been curious what this would do in a really highly resolving system and if it matters in one that hasn’t hit those levels yet (like mine).

    FWIW, I don’t hear much difference between the two other than I have to turn the volume knob a little more at the Low setting. But I have a D2 instead of the T2 so not exactly apples to apples comparison.

    thanks!

  5. #184
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    Re: Lumin T2

    For setups that can handle the normal output voltage of Lumin, the Analog Output Level should be left as Normal. However, when there is too much gain (from pre amp and/or power amp), or clipping occurs with loud music, then the analog audio output needs to be set to low, or RCA output instead of the recommended XLR output can be used.
    Peter Lie
    LUMIN Firmware Lead

  6. #185
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    Re: Lumin T2

    Not one to leave things alone. I thought it may be best to get away from the Cardas XLR and use some RCA interconnects. I have a older pair of Harmonic Technology Pro SilWay III that I haven't used in some time. They are a very smooth sounding cable. So, I added the Cardas XLR cables to the Oppo 205 and hooked up the Harmonic cables to the T2 and turned the Audio Output of the T2 back to normal. And now things sound less forward and music has dropped behind the speakers and instruments have a more natural sound.
    Speakers: Magico A3 with Cardas Clear Cygnus speaker cables
    Amp: Bryston 4BSST, Cardas Clear Cygnus power cable
    Preamp: NAD M12 Cardas Clear Cygnus power cable, XLR interconnect
    Lunin T2 Cardas Cat7 Ethernet cable Cardas Clear Cygnus power cable
    Keces P3 powering GigaFoilv4,Modem Supra Cat8 Ethernet cables
    CD/DVD: Oppo 205 Cardas Clear Cygnus power cable, XLR interconnect
    Subs: SVS SB1000 x 2 AudioQuest NRG-Y2 power cable
    HTPC/Streamer: Windows 10pro HTPC//Tital/Qobuz/JRivers via Roon Core USB/HDMI/iPad Pro
    Power Conditioner: Monster HTS5000,VanEvers model 85 Reference line cleaner, AudioQuest Niagra 1000 line conditioner

  7. #186
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    Re: Lumin T2

    Its always interesting to experiment with cables and good to hear that you have come to a sound you like .But sometimes one has to adjust to new things that sounds very different from where it was....and that can take time , or simple end up with a sound that one doesn't like.
    Flemming

  8. #187
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    Re: Lumin T2

    Quote Originally Posted by Darrel View Post
    hooked up the Harmonic cables to the T2 and turned the Audio Output of the T2 back to normal. And now things sound less forward and music has dropped behind the speakers and instruments have a more natural sound.
    Please also try a direct to amp configuration, bypassing the M12, with both RCA and XLR interconnects (but not simultaneously connected). Make sure you turn down the volume using Lumin app before starting playback.
    Peter Lie
    LUMIN Firmware Lead

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  10. #188
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    Re: Lumin T2

    Quote Originally Posted by wklie View Post
    Please also try a direct to amp configuration, bypassing the M12, with both RCA and XLR interconnects (but not simultaneously connected). Make sure you turn down the volume using Lumin app before starting playback.
    Good suggestion. For now I plan to just settle in and evaluate my system as is and enjoy.

    My room is not a dedicated music room. I use it for my computer hub. Watching sports, news and limited shows.
    I also know now that I'll have to move away from the NAD M12 at some point. I'll be researching preamps and asking questions here.
    Speakers: Magico A3 with Cardas Clear Cygnus speaker cables
    Amp: Bryston 4BSST, Cardas Clear Cygnus power cable
    Preamp: NAD M12 Cardas Clear Cygnus power cable, XLR interconnect
    Lunin T2 Cardas Cat7 Ethernet cable Cardas Clear Cygnus power cable
    Keces P3 powering GigaFoilv4,Modem Supra Cat8 Ethernet cables
    CD/DVD: Oppo 205 Cardas Clear Cygnus power cable, XLR interconnect
    Subs: SVS SB1000 x 2 AudioQuest NRG-Y2 power cable
    HTPC/Streamer: Windows 10pro HTPC//Tital/Qobuz/JRivers via Roon Core USB/HDMI/iPad Pro
    Power Conditioner: Monster HTS5000,VanEvers model 85 Reference line cleaner, AudioQuest Niagra 1000 line conditioner

  11. #189
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    Re: Lumin T2

    I recently purchased a T2 and am in the process of installing it. I noticed that on the back panel of the unit is a binding post named "Ground". My unit sits on a wooden panel suspended inside a metal equipment rack. The power feeding my T2 is both balanced and filtered. Would it be beneficial to also ground the T2? If so, to what do I attach the other end of the grounding wire -- given that there aren't any pipes in or nearby my listening room?

    Thank you.
    Jonathan
    _______________________

    Age is a mental construct.

    Primary equipment: Theta Casablanca IV preamp/processor/DAC; Wadia 8 transport; Wadia 2000 DigiMaster DAC; Theta Compli SACD/CD transport; Lumin T2 streamer/DAC; Roon Nucleus+; SOTA Sapphire turntable w/Premier FT3 arm & Alpha Genesis 1000 cartridge; McCormick phono preamp; SweetVinyl SC-2 noise/click remover; Oppo 203 digital player ; Magnum Dynalab FT-101A tuner; Krell 200c amplifier; Revel Ultima Studio loudspeakers and Sub 30 subwoofers (2); Velodyne MiniVee 10 subwoofers (2); Stax SR-L300 headphones; TeddyPardo Teddy19/3 linear power supply; ExactPower EP-15A (voltage regulator); Richard Gray's Substation (for power balancing/surge protection); Shunyata Denali 6000S and Hydra power conditioners; Transparent Audio Super speaker cables; various Kimber Kable, MIT, Morrow, Straight Wire and Wireworld interconnects; Shunyata and Wireworld power cords.

  12. #190
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    Re: Lumin T2

    Looking for some advice on which Lumin is right for my system. T2 (new or used) or a used A1?

    I have currently a ipad playing into an Ayre Codex or Khadas tone board (qobuz, tidal, roon). The khadas has amazing chips and measures amazing but does not sound very relaxing and real. Fatigue sets in quickly. the Ayre measures horrible but i can listen all day. I have a turntable system as well which sound vpi prime, jc3 jr, various cartridges.

    i want the most balanced real sounds possible but that I can listen to all night and get lost in the music. The A1 has many fans. the T2 is being touted as better and also relaxed and realistic. is it the best of both or fatiguing ESS all over again? can't listen to both i don't think...

    w4s pre > decware mystery > vivid 1.5 > gik acoustics

 

 
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