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In Reply to: RE: Is there any real reason a DAChas not been madewith a 0.5 volt out instead of 2 or 3 volts out.??? posted by Elizabeth on May 15, 2012 at 09:42:30
In the case of a DAC, I don't see how 0.5V would offer sonic advantages over 2V as a rule?
"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing not to put it in a fruit salad"
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"In the case of a DAC, I don't see how 0.5V would offer sonic advantages over 2V as a rule?"
12 dB more signal, probably the same amount of noise, so 12 dB better signal to noise ratio.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
If the DAC put out 0.5V instead of 2V, the signal to noise would be 6dB WORSE than with the higher voltage all else being equal, not 12dB better.
0.5V is 25% of 2V, which corresponds to -6dB
Unless there is something I am missing?
"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing not to put it in a fruit salad"
dB is a power ratio, not a voltage ratio. 1/4 the voltage is 1/16 the power.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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