Another D1 clone with CCS

Klaus · 9th January 2004, 07:50 AM

Hi,

my D1 stage clone launched… The sound is just incredible. Extreme stability, neutrality and silence in the sound – maybe caused by the consequent CCS using.

The schematic is a transfer from the P1.7 CCS into the pure D1 stage – thanks to the one and only! I have chosen the double JFET 2SK389 as converter. The sound is changing strongly with the bias current, find your own choice! Use for tests trimming resistors in the CCSs.

I am still feeding this stage with just 0,1mA from my TDA1547 using 6,5k work resistor R_L and 680pF Filter cap parallel. But soon a pack of PCM1704 will feed this converter sweetie pie…

Am I just to stupid or is there no way to upload attached files to the diyaudio server?! I have no web space installed so I can not refer to a personal www adress to lay down my pics somewhere. So please check the attached two links to see pics of the monster and the schematics…

http://www.audiomap.de/forum/index.p...id=15097&page=
http://www.audiomap.de/forum/index.p...id=15147&page=

Tweaky regards

Klaus

Peter Daniel · 9th January 2004, 02:09 PM

I'll do it for you. You should save the drawing as a picture and attach it here.

zygibajt · 9th January 2004, 03:25 PM

I'm planning to try D1 stage with TDA1541A DAC.
Do you think using just the half of orignial (balanced) circuit without any changes to parts values would work ok?

Bartek

Peter Daniel · 9th January 2004, 03:29 PM

It should work fine as it's not an X circuit.

Asen · 9th January 2004, 11:38 PM

zygibajt,

I was thinking of doing the same but using 2 TDA1541 the way D1 works. Do you have any special reasons to use just 1 DAC chip?

Regards

Peter Daniel · 9th January 2004, 11:54 PM

I have: it's a stereo DAC.

How do you plan to seperate into L & R channels?

zygibajt · 10th January 2004, 12:02 AM

I have one reason ,too.

I'm playing with CD player,not separate DAC.
By the way,I'm not quite sure I want to complicate things too much!

All best

Bartek

Asen · 10th January 2004, 12:11 AM

Peter,

I mean the second chip could be used to invert the phase. My idea was not splitting the channels. Do you think it's not possible with 1541?

Peter Daniel · 10th January 2004, 12:16 AM

I believe you can invert the phase in I2S signal, so the second chip is not required. You can of course do it with another chip as well you can use separate chips for L and R channels (guido was working on it), but such setups might sound different than doing it with a single chip.

rfbrw · 10th January 2004, 01:51 AM

If one wants to recreate the Pass D1 with the TDA1541A a second chip will be necessary.

9th January 2004, 07:50 AM	#1
Klaus diyAudio Member Join Date: May 2002 Location: near Frankfurt/Main	Another D1 clone with CCS Hi, my D1 stage clone launched… The sound is just incredible. Extreme stability, neutrality and silence in the sound – maybe caused by the consequent CCS using. The schematic is a transfer from the P1.7 CCS into the pure D1 stage – thanks to the one and only! I have chosen the double JFET 2SK389 as converter. The sound is changing strongly with the bias current, find your own choice! Use for tests trimming resistors in the CCSs. I am still feeding this stage with just 0,1mA from my TDA1547 using 6,5k work resistor R_L and 680pF Filter cap parallel. But soon a pack of PCM1704 will feed this converter sweetie pie… Am I just to stupid or is there no way to upload attached files to the diyaudio server?! I have no web space installed so I can not refer to a personal www adress to lay down my pics somewhere. So please check the attached two links to see pics of the monster and the schematics… http://www.audiomap.de/forum/index.p...id=15097&page= http://www.audiomap.de/forum/index.p...id=15147&page= Tweaky regards Klaus

9th January 2004, 03:29 PM	#4
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	It should work fine as it's not an X circuit. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

9th January 2004, 11:54 PM	#6
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	I have: it's a stereo DAC. How do you plan to seperate into L & R channels? __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

10th January 2004, 12:16 AM	#9
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	I believe you can invert the phase in I2S signal, so the second chip is not required. You can of course do it with another chip as well you can use separate chips for L and R channels (guido was working on it), but such setups might sound different than doing it with a single chip. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

9th January 2004, 03:25 PM	#3
zygibajt diyAudio Member Join Date: Jun 2003 Location: Wroclaw	I'm planning to try D1 stage with TDA1541A DAC. Do you think using just the half of orignial (balanced) circuit without any changes to parts values would work ok? Bartek

9th January 2004, 11:38 PM	#5
Asen diyAudio Member Join Date: Jan 2001 Location: Sofia	zygibajt, I was thinking of doing the same but using 2 TDA1541 the way D1 works. Do you have any special reasons to use just 1 DAC chip? Regards

10th January 2004, 12:02 AM	#7
zygibajt diyAudio Member Join Date: Jun 2003 Location: Wroclaw	I have one reason ,too. I'm playing with CD player,not separate DAC. By the way,I'm not quite sure I want to complicate things too much! All best Bartek

10th January 2004, 12:11 AM	#8
Asen diyAudio Member Join Date: Jan 2001 Location: Sofia	Peter, I mean the second chip could be used to invert the phase. My idea was not splitting the channels. Do you think it's not possible with 1541?

10th January 2004, 01:51 AM	#10
rfbrw diyAudio Member Join Date: Oct 2001 Location: .	If one wants to recreate the Pass D1 with the TDA1541A a second chip will be necessary.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
F1 Clone DIY PCB	suds	Group Buys	2	8th January 2009 09:50 AM
My F3 Clone	04dgmsilv	Pass Labs	11	31st August 2008 11:59 AM
clone AN/K	ccopp	Multi-Way	0	9th July 2006 08:24 AM
Question regarding ProAc 2.5 Clone and Tempo 2 Clone	zoooh	Multi-Way	5	11th March 2003 08:19 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read