No silicon
MC input, (no MM at all in this particular model)
Tube rectified PSU
Tube regulated PSU
Tube stages for input and output
No negative feedback
Premium parts
User switchable input loads for MC (low - normal - high)
Big housing like the Big 7 DAC
Finish Variants with Gold top, copper top, red paint top etc
Concealed tubes
Tube rolling possible
Nixie display for 4 input loads and muting
“volume” style knob for selector of loads
Needle current meter