The data sheet for the 218 here talks about an advanced linear power supply. Is this a newer model of the 218? I do recall the price going up considerably a little while back

ROON Rock on an NUC across the systems
Sitting room: 218, DSP7200SE
Study: 218, Quad 303, Spendor BC1
Bedroom: Musical Fidelity A3CR, Chartwell LS3/5a
Various Sonos boxes in bathroom and spare rooms