EMM Labs DA2 Reference Digital-to-Analog Converter Review
August 1, 2017 § 1 Comment
“The main reason that Ed Meitner prefers single-bit to multibit DACs is that the former are inherently linear. In a single-bit converter, any value is made up by adding or subtracting the same small value many times. That value is set by a single resistor. In contrast, multibit converters build up values by adding different combinations of smaller values, those values set by combinations of resistors. No matter how close the manufacturing tolerances of those resistors, it’s impossible to get the multiple resistors in exact ratios to each other — the resulting signal level will always be just a bit off. Ed Meitner believes that the superior linearity of single-bit designs is audible. However, single-bit processing isn’t without challenges of its own”
Audiophilepure 
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