girovagando ho trovato questo tizio polacco:
Lukasz Fikus Lampizator
fa un dac solo dsd tutto analogico senza chip !!!!
così si legge sul sito:
Lampizator DSD DAC - the first true DSD converter that works purely in analog domain - with passive filters and active tube circuits - without DAC converter chip. There is no digital processing of any kind and it is the most “native DSD” player known to mankind. The combination of tubes, DSD and Duelund caps produces a musical spectacle unheard before. It beats every DAC you ever heard - or your money back.