Hello,
 
I have owned a TDA1543 based Kusonoki style (passive I/V, digital filterless, non oversampling) DAC for almost two years.
 You can have a look at the measurements here.
 
 I find that this kind of implementation (Kusonoki) has a very distinct signature that is not very compatible with the reproduction of symphonic music: it's dynamically challenged, coloured, veiled and lacking at the frequency extremes.
 One could almost call it the digital version of single driver speakers.
 
 |  
  |