That’s because most dac’s with VC’s do it in the digital domain, yours was a rare one to have a passive VC on it’s output inside the dac, and that would have had to have been after an active buffer anyway, as if not, then it would have had to be after the I/V (current to voltage converter stage) and that would not have been a good idea..
mitch2
I have owned a DAC with a passive VC, but do not remember seeing one with an active stage.
The ones that have VC’s in the digital domain, all have active output buffers, unity or with gain, as did yours, but it was before the passive VC on the output, what brand model was it??
I am surprised manufacturers of those DACs with VC don’t provide a unity gain buffered output.
Cheers George