As a flagship player, the X1's business end could seem spartan. Whilst dual network ports go the extra mile, digital outputs are just USB/BNC. The more robust 5V AES/EBU is absent. Lumin probably figure that their twin Sabre S9038Pro DAC with native DSD512/768kHz PCM is so good that few would buy an X1 with the intention of bypassing it. Now the only outputs one uses are their 3V/6V RCA/XLR analog ports coupled via Lundahl LL7401 transformers. Their absolute polarity can be inverted inside the Lumin App. To keep the X1's milled aluminium extrusion tidy and exploit physical separation for dirty power, Lumin's linear power supply occupies its own chassis.