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In Reply to: French ART : the return (of the tweaks) posted by Claude G on August 10, 2002 at 13:07:50:
Claude,Good to see you back in the saddle. It sounds as though you are committed to the project you described. I would only suggest that you consider the transformer output mod and be done with op-amps altogether. I am using Jensen transformers and basically have not even considered another mod to the DI/O. The PS is now routed through one schottky, has one big Black Gate and LM 1086 VR - everyting else is gone. I'll post photos @ DIOmods site.
Happy soldering,
John O.
Follow Ups:
Hi John,I followed your works on the passive outputstage. Really excellent, not much to add! (no active part, soft filter, nice philosophy - less but better parts, etc...)
I went another route mainly because I need a solid output stage to drive my passive preamp. Even if a 100k load might be driven by good output transformers...
As the result is great, and beyond what I ever listen to, I must say I am a bit shy on tweaking again / trying other solutions at the output stage. I prefer spending some time listening, and, you know, if it ain't broken... (soldering again and again has it limits I guess!)
But, again, your alternative is great. Maybe more on my direct mail, as I don't log in very often?
Bye
Claude
I have an ART DIO on order, and would very much appeciate URLs for any sites you feel are worthwile regarding tweaks and mods.This is a whole new area for me, so thanks in advance for any help you an give.
Jim
These two links should keep you busy for a while:http://www.interlog.com/~cfraser/DIOFAQ.htm
http://www.angelfire.com/ca/rchau/audio.html#DI/O...enjoy,
PeAK
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