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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: 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:
As others have already pointed out, there are digital components with less than a 2VRMS output level.I don't know that there is any solid technical reason for the nearly standard 2V output leveI. I don't see noise as being the driving issue. Even a 0.5 volt level would be about 100x the amplitude of a high output moving-magnet phono cartridge. In addition, you begin to incur increased distortion as the output signal amplification is raised.
One of the system level issues is that there is usually too much total gain between the input to an active linestage and the output of an power amp. This fact is why Nelson Pass created his B1 buffer. It seems to me that CD's 2V output level is probably one of the worst choices. It is simultaneously too high, given the excess gain of most systems, and a little too low to universally eliminate the linestage.
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Ken Newton
Edits: 05/16/12 05/16/12 05/16/12 05/16/12
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- RE: Is there any real reason a DAChas not been madewith a 0.5 volt out instead of 2 or 3 volts out.??? - knewton 07:34:59 05/16/12 (0)
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