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 zed_alive napisao:

Ne kužim zaš se proizvođači skupih DAC-ova preseravaju oko tih trafača, umjesto da ih udalje što dalje od elektronike, dobro izoliraju (i pritom uzmu pravi trafač koji nije toliko osjetljiv na stray flux, npr. r-core).

Evo odgovora Ted Smith-a:  
"...I can lower the noise in the audio band and more and more aggressively filter the resultant ultrasonic noise: but everyone that has listened to that likes the sound less (tho I certainty expect that some would like the filtered top better.) If someone doesn’t like the DS’s sound then the DS isn’t for them, no problem, there are a lot of fine DACs out there (and TTs, etc.)
I could skip the transformer, but then the DS would integrate well into fewer systems and have more analog noise. Sure there are a lot of better transformers out there, but they cost too much for a product at this price point. I’m reasonably happy with the performance of the transformers we use. When I started the project I thought that transformers were crazy for this application and did a lot of work that avoided them, but the very first time I simply passively filtered a DSD stream with resistors, caps and a transformer I knew I was on the right track and I had to learn and changed my mind about transformers...."