Hey my 20, 23 actually, year old DAC sounds just fine thanks! Love that old R2R technology, wedded to a robust power supply and tubed analog output stage of course.Same here. Old R2R; check. Tube output stage; check. Robust power supply check. The only difference is that mine is *only* 16 years old. As I stated in another post (I'll respond to that one shortly), my old 16 year old DAC sounds very close (but slightly better in some ways) than my newer DACs.