Anyone can confirm piggybacked PCM1704 on Pass D1 24/96???

efreak0314 · 30th December 2010, 12:23 PM

Hi all,
i just wondering about piggybacking the PCM1704s to achieve more output current. Maybe some pins should not tie together or bypassed together with a cap? It would be wonderful if the master Pass himself can answer since the D1 24/96 is no more in production.

What do you mean, is it possible to piggyback the PCM1704? Has anyone tried it out?

Many thanks!!!

Efreak0314

Kovax · 2nd January 2011, 07:22 PM

Hmm, Khmm, Google.com says;
SOLD: Pass Labs D1 24/96 DAC - Head-Fi.org Community

and a happy New year!

efreak0314 · 3rd January 2011, 08:41 AM

Hi,
thanks, i already saw that, but it still dont tell me if the pcm1704s are piggybacked.

is anyone out there who can help me out?

regards

Gyuri · 3rd January 2011, 01:59 PM

This means it to me that this there is piggybacked:
"For those that are not aware, the 24/96 version of the D1 uses a CS8414 receiver, DF1704 filter (yeah.....), and 8xPCM1704 DACs, followed by a fully balanced discrete I/V section."

Gyuri

efreak0314 · 3rd January 2011, 04:33 PM

Hi,
that phrase only tells that 8 pcm1704 is in use. It can be

option 1: the output of 2 pcm1704 are tied together (parallel)
option 2: all the pins of 2 pcm1704 are tied togehter (piggyback)

I want to know if option 2 is possible without damage.

regards

Kovax · 3rd January 2011, 08:56 PM

This picture will not answer your questions, the last ones...
But it seems that they were not piggy style connected.
It is a poor picture, but ... one can see that 2 pieces 1704 were mounted to
some kind of adapter. Don't want to speculate any more.

efreak0314 · 6th January 2011, 06:48 AM

thank you for this picture. It should be clearly now for me!

Gyuri · 7th January 2011, 07:23 PM

It is true. It is not piggybacked.
We now know this.
But not more.

Gyuri

30th December 2010, 12:23 PM	#1
efreak0314 diyAudio Member Join Date: Apr 2006 Location: germany	Anyone can confirm piggybacked PCM1704 on Pass D1 24/96??? Hi all, i just wondering about piggybacking the PCM1704s to achieve more output current. Maybe some pins should not tie together or bypassed together with a cap? It would be wonderful if the master Pass himself can answer since the D1 24/96 is no more in production. What do you mean, is it possible to piggyback the PCM1704? Has anyone tried it out? Many thanks!!! Efreak0314

2nd January 2011, 07:22 PM	#2
Kovax diyAudio Member Join Date: Aug 2002 Location: Zagreb , CROATIA	Hmm, Khmm, Google.com says; SOLD: Pass Labs D1 24/96 DAC - Head-Fi.org Community and a happy New year! __________________ If it can't be fixed ... use a bigger hammer

3rd January 2011, 01:59 PM	#4
Gyuri diyAudio Member Join Date: Nov 2003 Location: Budapest	This means it to me that this there is piggybacked: "For those that are not aware, the 24/96 version of the D1 uses a CS8414 receiver, DF1704 filter (yeah.....), and *8xPCM1704 DACs*, followed by a fully balanced discrete I/V section." Gyuri __________________ Those who would have deserved the life they are all dead already. "Oh, my dead dears!" - Captain Cat

7th January 2011, 07:23 PM	#8
Gyuri diyAudio Member Join Date: Nov 2003 Location: Budapest	It is true. It is not piggybacked. We now know this. But not more. Gyuri __________________ Those who would have deserved the life they are all dead already. "Oh, my dead dears!" - Captain Cat

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3rd January 2011, 08:41 AM	#3
efreak0314 diyAudio Member Join Date: Apr 2006 Location: germany	Hi, thanks, i already saw that, but it still dont tell me if the pcm1704s are piggybacked. is anyone out there who can help me out? regards

3rd January 2011, 04:33 PM	#5
efreak0314 diyAudio Member Join Date: Apr 2006 Location: germany	Hi, that phrase only tells that 8 pcm1704 is in use. It can be option 1: the output of 2 pcm1704 are tied together (parallel) option 2: all the pins of 2 pcm1704 are tied togehter (piggyback) I want to know if option 2 is possible without damage. regards

6th January 2011, 06:48 AM	#7
efreak0314 diyAudio Member Join Date: Apr 2006 Location: germany	thank you for this picture. It should be clearly now for me!

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