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In Reply to: Totaldac d-1 Monoblock DAC posted by Mercman on April 9, 2014 at 07:54:09:
At least we see a decent noise floor on the graphs the manufacturer provides, -160 dB on the spectrum plot. Not sure what the actual numbers are as they will depend on FFT gain of the particular FFT used to calculate the spectrum. (FWIW my usual FFT has about 40 dB of gain, which would leave the noise floor at -120 dB or about 20 bits. A true 24 bit noise floor in my plots would be at about -180 dB.)
Given that the manufacturer's web site provided two plots, it would be nice if it also had plots of high level tones so that distortion might have a chance to poke its way above the noise floor and so that noise modulation could get a chance to rear its ugly head and get caught.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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