What was the actually reason for stopping production of the D1 at those days ?

tiefbassuebertr · 31st October 2011, 12:05 AM

According to the non-availability PCM63 from Burr Brown also the D1 was shortly later no longer available. I have read anywhere, that the follow successors PCM1702, PCM1704, PCM1792 and PCM1794 unfortunately haven't the same musical character despite better measuring results and for this reason the production of the D1 was not continued.

Who knows the right story (resp. the URL where this is to read) ??

wayne · 31st October 2011, 01:52 AM

The D1 started out as a project for my own use. Nelson had a nice analog circuit and it kind of grew from there. I would say it's timing was off coming late to the game as CD players became better. Parts became an issue like the PCM63. I still use the 63 in mine. The guys who designed both the 63 and 1704 preferred the 63 for some internal clocking issues if I remember correctly. It just sound pretty good.

Now we see a return to the external USB DAC these days. Maybe time to play again with digital.

6L6 · 31st October 2011, 02:44 AM

Maybe a DIY version, Wayne? ?

Hint...

Hint...

Hint...

tiefbassuebertr · 10:35 AM

Quote:

Originally Posted by wayne

The D1 started out as a project for my own use. Nelson had a nice analog circuit and it kind of grew from there. I would say it's timing was off coming late to the game as CD players became better. Parts became an issue like the PCM63. I still use the 63 in mine. The guys who designed both the 63 and 1704 preferred the 63 for some internal clocking issues if I remember correctly. It just sound pretty good.
Now we see a return to the external USB DAC these days. Maybe time to play again with digital.

Both according varios (a lot of) comments here on this forum and my own experience the I/U (I/V) converter has a very great influence of the individual sonic character (together with the kind of digital filtering and the kind of reclocking).
Can we assume, that in this comparison at least the I/U converter for the PCM1704 was also optimally dimensioned (in the same basicly manner than by the PCM63)?
Or is it also possible that this was not the case and a not so good suited I/U converter was the real reason for this audible sound impression?

31st October 2011, 12:05 AM	#1
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	What was the actually reason for stopping production of the D1 at those days ? According to the non-availability PCM63 from Burr Brown also the D1 was shortly later no longer available. I have read anywhere, that the follow successors PCM1702, PCM1704, PCM1792 and PCM1794 unfortunately haven't the same musical character despite better measuring results and for this reason the production of the D1 was not continued. Who knows the right story (resp. the URL where this is to read) ??

31st October 2011, 02:44 AM	#3
6L6 diyAudio Member Join Date: Oct 2010 Location: Denver, Colorado	Maybe a DIY version, Wayne? ? Hint... Hint... Hint... __________________ llustrated Build Guides - Pass Pearl 1 - Pass B1 - - Pass F5 - Pearl 2 - -O2 HPA - - Pass F4

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31st October 2011, 01:52 AM	#2
wayne In the hills diyAudio Member Join Date: Jan 2002 Location: Northern California	The D1 started out as a project for my own use. Nelson had a nice analog circuit and it kind of grew from there. I would say it's timing was off coming late to the game as CD players became better. Parts became an issue like the PCM63. I still use the 63 in mine. The guys who designed both the 63 and 1704 preferred the 63 for some internal clocking issues if I remember correctly. It just sound pretty good. Now we see a return to the external USB DAC these days. Maybe time to play again with digital.