David Broadhurst Dac site address?

gchrist · 19th March 2004, 10:01 AM

Does anyone know the site of David Broadhurst and his DAC design?

I have found some other threads but the site that they point to does not work.

Thank you

George

Peng · 19th March 2004, 10:30 AM

Hello George,

try this
http://www.geocities.com/d_broadhurst/

Greetz
Peng

gchrist · 19th March 2004, 10:48 AM

Thank you,

This site has only pictures. I would like to get more documentation on this project. Is someone selling pcb's for this Dac? Where?

Thanks again
George

peranders · 14th February 2006, 05:13 PM

Quote:

Originally posted by Peng
Hello George,

try this
http://www.geocities.com/d_broadhurst/

Anybody who knows where I can find David Broadhurst these days?

Did some googling without any result.

Dave · 14th February 2006, 05:54 PM

Hi Folks,

That would be me who you're looking for.
My website hasn't been up and running for some time now although I am planning to restart it with a pre-ampllifier design....

I'm not offering PCBs for my old DAC design however I have attached the schematics of what is the latest revision of the design.

Cheers,

David

Cobra2 · 14th February 2006, 06:12 PM

Maybe I should finish mine...and tweak it...
It is really finished, but never boxed, as Peter D said long time ago, he did not like his. I have since understood that I don't share his "sound" (non-os)...

Arne K

peranders · 14th February 2006, 06:24 PM

David, I'll get this when I click on your www button:
Sorry, the page you requested was not found.

EDIT: was not up, I'll get it.

The reason why I ask is because I have you listed at my linkpage and somebody reported the bad link.

Cobra2 · 14th February 2006, 09:16 PM

Hmm...first, get rid of the CS8420.....

Arne K

Dave · 14th February 2006, 09:34 PM

Hi Arne,

The design I have just posted has a revised analog stage otherwise it would be the same as the one you have built.
I agree that the asynchronous sample rate converter in the CS8420 is probably the first thing that should be upgraded.

Peter D was actually pretty happy with the DAC but has sinced moved to Non-oversampling designs (I think). Anyway he performed several upgrades to the power supply (seperate supplies for the analog and digital sections of the DAC chips themselves). He said this "It moves the sound of an already fine DAC to the next level."

By the way I have found over the years that the socket the DF1704 is mounted in can sometimes give problems. You just need to push it down so that the contacts rewipe against the pins of the DF1704.

peranders,

Thanks for providing a link to my website, I am hoping to restart it again in a couple of months once I have this pre-amp design ready.

mrjam · 15th February 2006, 09:41 AM

My email has gotten the hoped effect!

Now I have the schematics of the dac so I can study it!

19th March 2004, 10:01 AM	#1
gchrist diyAudio Member Join Date: Mar 2002 Location: Athens Greece	David Broadhurst Dac site address? Does anyone know the site of David Broadhurst and his DAC design? I have found some other threads but the site that they point to does not work. Thank you George

19th March 2004, 10:30 AM	#2
Peng diyAudio Member Join Date: Jun 2003 Location: netherlands	site address Hello George, try this http://www.geocities.com/d_broadhurst/ Greetz Peng

14th February 2006, 06:12 PM	#6
Cobra2 DIY ! diyAudio Member Join Date: Apr 2002 Location: Stavanger, Norway	Great ! Maybe I should finish mine...and tweak it... It is really finished, but never boxed, as Peter D said long time ago, he did not like his. I have since understood that I don't share his "sound" (non-os)... Arne K __________________ Ars longa, vita brevis

14th February 2006, 06:24 PM	#7
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	David, I'll get this when I click on your www button: Sorry, the page you requested was not found. EDIT: was not up, I'll get it. The reason why I ask is because I have you listed at my linkpage and somebody reported the bad link. __________________ /Per-Anders (my first name) or P-A as my friends call me Tube Buffered Gainclone in work \|Thread

15th February 2006, 09:41 AM	#10
mrjam diyAudio Member Join Date: May 2005 Location: Massa. Italy	Thanks P-A! My email has gotten the hoped effect! Now I have the schematics of the dac so I can study it!


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19th March 2004, 10:48 AM	#3
gchrist diyAudio Member Join Date: Mar 2002 Location: Athens Greece	Thank you, This site has only pictures. I would like to get more documentation on this project. Is someone selling pcb's for this Dac? Where? Thanks again George

14th February 2006, 09:34 PM	#9
Dave diyAudio Member Join Date: Oct 2001 Location: New Zealand	Hi Arne, The design I have just posted has a revised analog stage otherwise it would be the same as the one you have built. I agree that the asynchronous sample rate converter in the CS8420 is probably the first thing that should be upgraded. Peter D was actually pretty happy with the DAC but has sinced moved to Non-oversampling designs (I think). Anyway he performed several upgrades to the power supply (seperate supplies for the analog and digital sections of the DAC chips themselves). He said this "It moves the sound of an already fine DAC to the next level." By the way I have found over the years that the socket the DF1704 is mounted in can sometimes give problems. You just need to push it down so that the contacts rewipe against the pins of the DF1704. peranders, Thanks for providing a link to my website, I am hoping to restart it again in a couple of months once I have this pre-amp design ready.

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