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In Reply to: RE: Thank you Mihaylov, Gstew and Theob for the encouragement. SQ made an quantum leap. :-) posted by smicyta on October 31, 2011 at 23:24:59
Hi smicyta
Please look in this post from Mihaylov.
http://www.audioasylum.com/forums/pcaudio/messages/9/97170.html
At the end Mihaylov provides a link too a PDF on his website.
All details are in there.
Good look
Mark
fully optimized cMP2 PC -> ESI Juli@ -> Van den Hul Optocoupler MkII-> Lavry Black DA10 -> XLR Mogami Gold -> Klein & Hummel O300
Follow Ups:
Hi Mark
Thanks.
My current power supply for the Juli@ Digital is as per Mihaylov recommendation using a Belleson regulator.
U1 remains in my case.
Does the removal of U1 and using a direct feed of 3.3V linear supply improves the SQ further?
Best Regards
Hi Smicyta,
I didn’t test that situation. I did not by-pass it,
I removed/desoldered the original voltage regulator.
I saw no point in by-passing and keeping the original regulator when it spoils sound quality
In my opion the original regulator is best removed.
And not bypassed or using extra caps too clean up the mess from that original regulator
So I don’t know the sound quality in a by pass situation
(with the orginal regulator in place)
Mark
fully optimized cMP2 PC -> ESI Juli@ -> Van den Hul Optocoupler MkII-> Lavry Black DA10 -> XLR Mogami Gold -> Klein & Hummel O300
Hi Mark
I was thinking of removing U1 like you did. I thought that by applying a 3.3V direct feed, the 5V would not be necessary. It seems that you are feeding both the 3.3V and 5V to the Juli@.
So I believe the 5V is also necessary.
Have to order the 3.3V regulator to try out what you did though.
Best Regards
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