Here the difference between the Lux and the Lumin U2 as per Lumin's Peter Lie - Firmware Lead
"Exclusive to Luxman NT-07:
- Luxman aesthetics to match Luxman gear
- EI core transformer with 2 x 10,000uF capacitors
- HDMI audio input (note: not I2S) and ARC (note: TV must set to stereo PCM and Dolby/DTS off)
- Comes with remote control RC-30
- 12V trigger input/output
Exclusive to Lumin U2:
- Lumin toroidal transformer
- AES output
- SFP fiber network
- Leedh Processing Volume
- Support Plex
- Default selection of FLAC radio stations
- Multi-room playback with multiple Lumin units using Lumin app
- (Lumin physical remote is separately purchased)
* Firmware feature differences as of Sept. 2023 - may change in the future. "
Cheers,
Sid
"Exclusive to Luxman NT-07:
- Luxman aesthetics to match Luxman gear
- EI core transformer with 2 x 10,000uF capacitors
- HDMI audio input (note: not I2S) and ARC (note: TV must set to stereo PCM and Dolby/DTS off)
- Comes with remote control RC-30
- 12V trigger input/output
Exclusive to Lumin U2:
- Lumin toroidal transformer
- AES output
- SFP fiber network
- Leedh Processing Volume
- Support Plex
- Default selection of FLAC radio stations
- Multi-room playback with multiple Lumin units using Lumin app
- (Lumin physical remote is separately purchased)
* Firmware feature differences as of Sept. 2023 - may change in the future. "
Cheers,
Sid