Monday, April 15, 2019

Chinese DAC

Built from a kit in 2011.

The design is a typical oversampling DAC of the era: SPDIF receiver is followed by an asynchronous sample rate converter, followed by a PCM1794 DAC - quite similar to my ezDAC (see an earlier post). The USB interface is built around TI's PCM270x chip. A fancy addition is a tube buffer. The construction is very solid with thick aluminum panels.

I know this is subjective, but I don't like the sound at all. Unfortunately, I can say this about every single eBay kit or PCB I have ever purchased. They all feature pretty PCBs with extra thick copper, machined aluminum panels and, in this case, an R-core power transformer, they promise big ticket performance on the cheap, but they do not deliver. The good sound is not in thick copper or solid aluminum enclosure.



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