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Truncation of LSB's

This is for the experts in digital conversion: in the Stereophile review of the Schiit Yggdrasil, JA asserts that because the DAC chip used is a 20 bit device, for 24-bit audio it must truncate the LSB's which is a process that causes distortion. I understand that not all opinions are in agreement on this, or even perhaps to what degree it matters to those that believe in the negative audible effects of LSB truncation.

However, if we were to assume that this distortion does have audible effects, I'm just curious to know of the possible ways to have DAC's of 20 or even 16 bits accept 24-bit audio without throwing out bits. Isn't there a way to use multiple chips in parallel to accomplish this? If so, how many 20-bit chips would be needed to process 24-bit audio? How about using a 20 bit DAC for say the first 20 bits (MSB's) and a discreet resistor R-2R DAC to handle the 4 LSB's? Is something like that even possible?

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  Michael Percy Audio  

Topic - Truncation of LSB's - sideliner 10:24:52 06/03/17 (9)


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