I came across an old post from 2003 at Audiogon ( http://forum.audiogon.com/cgi-bin/fr.pl?ddgtl&1063887965 ) which said:
"I think it sounds so good because of the unique D/A stage designed by Wayne Colburn at Pass. Does yours have the 24/96 upgrade? If not, you may want to look into it. Wayne replaces the four Burr-Brown PCM64K Dacs with eight(!) Burr-Brown PCM 1704K Dacs as well as some other changes."
The conventional wisdom is that the D1 is a PCM63 based dac and the 24/96 was a reciever board only upgrade, so I'm curious if the 24/96 D1's left the factory with PCM1704K installed?
Paul
"I think it sounds so good because of the unique D/A stage designed by Wayne Colburn at Pass. Does yours have the 24/96 upgrade? If not, you may want to look into it. Wayne replaces the four Burr-Brown PCM64K Dacs with eight(!) Burr-Brown PCM 1704K Dacs as well as some other changes."
The conventional wisdom is that the D1 is a PCM63 based dac and the 24/96 was a reciever board only upgrade, so I'm curious if the 24/96 D1's left the factory with PCM1704K installed?
Paul
There was only a receiver board upgrade. I don't recall any change of DAC chips. Both chips are R2R types, but with different packages and pinouts.
-David
-David
dw8083 said:There was only a receiver board upgrade.
The information on Audigon is actually correct. Wayne Colburn confirmed that for the standard 24/96 upgrade each PCM63P-K was replaced by a paralleled pair of PCM1704.
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