Opening the new DacMagic???? - Page 2

georgehifi · 14th April 2009, 04:26 AM

Quote:

Originally posted by Peter Daniel
He meant modofications, not the stock unit.

Can read it both ways, he should have put "would be" between but & a .

Wolfson WM8740 voltage output dac has it's own internal I/V opamp convertor, can't be bypassed either, bummer no using the Zapfilter in current input mode which is what it shines at. I prefer current output dacs more room to improve on.

Cheers George

Ipanema · 15th April 2009, 10:40 AM

Hi George, why do you think that internal I/V is bad?

georgehifi · 15th April 2009, 11:24 AM

From what I've been told they're usually just your plain Jane NE-5532 or similar, and there's nothing you can do about it as far as doing something better. Like a proper discrete Transimpedance I/V amp, this is why I like current output dacs or Voltage output but with a bypass pin built in for the internal I/V opamp like the PCM56P or the PCM63 has and a host of others.
Cheers George

sq225917 · 19th April 2009, 11:44 PM

Sorry, I was talking about my previously modded unit George.

Agreed on the Zapfilter in current mode.

bruce lee · 3rd June 2009, 03:27 AM

George, its easy to see he meant modifcation and not stock unit! i notice an increase in noise when the xlr outputs are used for rca inputs, but through the single ended outs there is no noise, this is when volume control on headphone amp is turned all the way up with the source pause. cheers

champ04 · 7th June 2009, 08:13 PM

So has anyone actually modified one of these things yet?

le´flu · 20th July 2009, 06:56 PM

Hi there,
i´m recently also thinking about upgrading the dacmagic.
Stupid thing is....i can´t find a lot of hints in the internet.
Anybody foud anything?
What do you think about this thing then?

http://cgi.ebay.de/UPGRADE-PSU-FOR-C...ht_1926wt_1167

What kind of transformer is meant?

Greetings Ulf

Bassivus · 1st September 2009, 11:28 AM

Quote:

Originally Posted by le´flu

Hi there,
i´m recently also thinking about upgrading the dacmagic.
Stupid thing is....i can´t find a lot of hints in the internet.
Anybody foud anything?
What do you think about this thing then?

http://cgi.ebay.de/UPGRADE-PSU-FOR-C...ht_1926wt_1167

What kind of transformer is meant?

Greetings Ulf

Hello,

I was also searching the net, but you are absolutely right, not much to be found. I really don't now why cause everybody say its already pretty decent as stock unit, and sure has the good potential for mods - especially when you need both Balanced and RCA.

I don't think that the guy on ebay selling that supply is gonna reveal what he uses, only if someone bought it and is willing to open it

Luke · 1st September 2009, 11:41 AM

i bet whatever he uses can be bettered with some of the cicuits floating around here

wwenze · 1st September 2009, 11:52 AM

That is downright goddamn fishy.

15th April 2009, 11:24 AM	#13
georgehifi diyAudio Member Join Date: Sep 2003 Location: Manly Australia (Gods Country)	From what I've been told they're usually just your plain Jane NE-5532 or similar, and there's nothing you can do about it as far as doing something better. Like a proper discrete Transimpedance I/V amp, this is why I like current output dacs or Voltage output but with a bypass pin built in for the internal I/V opamp like the PCM56P or the PCM63 has and a host of others. Cheers George __________________ Avatar : Production Lightspeed Attenuator www.lightspeedattenuator.com

19th April 2009, 11:44 PM	#14
sq225917 diyAudio Member Join Date: Jun 2004 Location: sheffield	Sorry, I was talking about my previously modded unit George. Agreed on the Zapfilter in current mode. __________________ hoping to pick up some things.

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

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Dacmagic Mods	Blue_Max	Digital Line Level	50	9th March 2009 10:15 AM
Sony CD-X33ES CD Tray not opening-help?	eldarvanyar	Digital Source	7	14th January 2008 06:12 PM
Help! Cracks opening in my veneer	suzyj	Multi-Way	7	28th December 2006 05:42 AM
Cambridge Dacmagic 1	ManUtd	Digital Source	1	6th October 2003 11:17 AM

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


	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

15th April 2009, 10:40 AM	#12
Ipanema diyAudio Member Join Date: Jun 2004 Location: KL	Hi George, why do you think that internal I/V is bad?

3rd June 2009, 03:27 AM	#15
bruce lee diyAudio Member Join Date: May 2009	George, its easy to see he meant modifcation and not stock unit! i notice an increase in noise when the xlr outputs are used for rca inputs, but through the single ended outs there is no noise, this is when volume control on headphone amp is turned all the way up with the source pause. cheers

7th June 2009, 08:13 PM	#16
champ04 diyAudio Member Join Date: Jun 2009	So has anyone actually modified one of these things yet?

20th July 2009, 06:56 PM	#17
le´flu diyAudio Member Join Date: Mar 2004 Location: Hoexter	Hi there, i´m recently also thinking about upgrading the dacmagic. Stupid thing is....i can´t find a lot of hints in the internet. Anybody foud anything? What do you think about this thing then? http://cgi.ebay.de/UPGRADE-PSU-FOR-C...ht_1926wt_1167 What kind of transformer is meant? Greetings Ulf

1st September 2009, 11:41 AM	#19
Luke diyAudio Member Join Date: Sep 2001 Location: Wellington NZ	i bet whatever he uses can be bettered with some of the cicuits floating around here

1st September 2009, 11:52 AM	#20
wwenze diyAudio Member Join Date: Mar 2008	That is downright goddamn fishy.

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