2. amps-preamps
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Do Audio Experience Symphonies leak DC current?

I'm thinking about trying an Audio Experience Symphonies preamp, but i read a post where someone said their symphonies pre leaked dc current, putting their classe ca-100 into protection mode.

here:
http://forum.audiogon.com/cgi-bin/fr.pl?rprea&1047509999&read&keyw&zzsymphonies+classe

i have a ca-200, which also does not like preamps that leak dc current (per manual).
has anyone else had this happen with this preamp, or was this case an isolated incident caused by a faulty component in the preamp?
thanks
ketchup

Showing 2 responses by ketchup

ketchup OP
688 posts
 
I emailed YS audio about the potential problem. Hope I get a response.
ketchup OP
688 posts
 
Chui Chi Wai of YS Audio replied to me and requested that i update this thread with the following info.

he said that one output cap needs to be removed which will correct the problem of amps going into protection mode. there are two in parallel, so a simple wire cut is all that's necessary. he sent me a pic, showing where to cut. if anyone's interested i can email it.

he claimed that removing the cap will not degrade sound quality.
if you're thinking about buying a symphonies, he will sell it with one output cap if you request, and he's contemplating doing this on all symphonies now. he noted that after selling the symphonies preamp for 3 years, only two customers have had this problem.
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