LUMIN

LUMIN Support - Settings

LUMIN Settings (accessed through the App)

Lumin Settings Name Enter your chosen name for this particular LUMIN.
Lumin Settings Firmware Check If set to 'Yes', LUMIN will automatically look for updates whenever the App is started.
Lumin Settings Front Panel Display The LUMIN Front Panel Display has adjustable brightness.
Lumin Settings Idle Sleep LUMIN will go to sleep (saving a small amount of power and turning off the Front Panel Display) after the set period of inactivity.
Lumin Settings Volume Control If you don't intend to use the digital volume control, you can save space in the app for song titles, etc by turning it off.
Lumin Settings Analog Audio Output Level Some systems (perhaps with a high-gain pre-amplifier) may be better matched using the 'Low' setting. It uses a combination of DAC settings to lower the output level by around -4db.
de-Emphasis Some CDs (generally old) have a 'flag' for 'pre-emphasis'. High frequencies were occasionally increased in magnitude in order to improve Signal-to-Noise ratio. Digital files don't carry this 'flag' so only set this to 'on' for files that you know to need it. More info here. In-progress list of CDs here. This setting has no effect on on High resolution files, or when re-sampling is used.
Lumin Settings Digital Audio Output If you have no need for the Digital Audio Output (to an external DAC), then you can turn it off here.
Lumin Settings MQA mode MQA is a high resolution audio codec. Depending on your system, you may prefer to let other hardware perform some of the MQA decoding. Analogue Output: LUMIN will do all the decoding. Digital Output: LUMIN will perform some of the decoding. Passthrough: LUMIN will passthrough the full MQA stream to your DAC.
Lumin Settings AirPlay LUMIN Streaming is the function that allows compatibility with Apple AirPlay. If you have no use for this feature, you can turn it off here.
Lumin Settings Roon Ready Roon Ready means that LUMIN is certified for use with Roon. If you have no use for this feature, you can turn it off here.
Lumin Settings Spotify Connect Spotify Connect means that LUMIN is certified for use with Spotify and the Spotify App. If you have no use for this feature, you can turn it off here.
Invert Phase Some songs were recorded, or mastered with the phase inverted, some users may like to restore to correct phase during playback. For general use, this should be left 'Off'.
Ultra-sonic Filter for DSD Playback If you know that your equipment is particularly sensitive to the higher levels of ultrasonic noise inherent to DSD you can apply this filter. For general use, this should be left 'Off'.

Resampling settings

Lumin Settings Re-Sampling When set to 'Off', LUMIN will play all files in their native sample rate and resolution. If you set it to 'Custom' the options below appear.
Lumin Settings DSD Here you can choose to play DSD in native format, convert DSD files to DoP for Digital Audio Output, or downsample to PCM audio. This may be used for compatibility with an external DAC.
Lumin Settings 384kHz PCM Here you can choose to downsample 384kHz PCM audio files. This may be used for compatibility with an external DAC.
Lumin Settings 352.8kHz PCM Here you can choose to downsample 352.8kHz PCM audio files. This may be used for compatibility with an external DAC.
Lumin Settings 192kHz PCM Here you can choose to downsample 192kHz PCM audio files. This may be used for compatibility with an external DAC.
Lumin Settings 176.4kHz PCM Here you can choose to downsample 176.4kHz PCM audio files. This may be used for compatibility with an external DAC.
Lumin Settings 96kHz PCM Here you can choose to either upsample or downsample 96kHz PCM audio files. You may prefer the upsampled audio - try it and see. Downsampling may be used for compatibility with an external DAC.
Lumin Settings 88.2kHz PCM Here you can choose to either upsample or downsample 88.2kHz PCM audio files. You may prefer the upsampled audio - try it and see. Downsampling may be used for compatibility with an external DAC.
Lumin Settings 48kHz PCM Here you can choose to upsample 48kHz PCM audio files. You may prefer the upsampled audio - try it and see. DSD upsampling is a new feature with Firmware 3.0.
Lumin Settings 44.1kHz PCM Here you can choose to upsample 44.1kHz PCM audio files. You may prefer the upsampled audio - try it and see. DSD upsampling is a new feature with Firmware 3.0.
PCM Output Bit Depth Here you can choose to upsample PCM audio files to 16 or 24 bit resolution. You may prefer the upsampled audio - try it and see.