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Audio Research Reference 3 Seeking help

Dear Brothers,

I am Michael from Hong Kong. I bought my Audio Research Reference 3 Preamp from the previous authorized Hong Kong dealer in 2008. Now I intended to upgrade the said 4 pcs 0.0024 coupling caps inside the Ref3 but the present authorized Hong Kong dealer refused to help me to make such order.

Would you guys offer me assistance to that? Of course, I must pay you back the charges in advance, if any.

Thanks for your help.

Rgds,
Michael Cheung
from Hong Kong
techalliedsinatown
hansk46's avatar
hansk46
122 posts
 
Hello Hifigeek1,
Could you please tell us the value of this bypass cap ?
Some time ago the ARC importer give me the new 6550 tube , but said to me the 4 bypass caps would not give me a better sound .In my schematics the 4 caps are of course not mentioned . They are listed however in the CD7 and installed in the factory.In this schematics ( SEP 26 05 )
C5,6 are listed as 0,0024mF 500V INFINICAP.Did not verify in my CD7
hifigeek1
770 posts
 
As I explained above .0024 mfd caps will not give you better sound and are not coupling caps. You can try emailing the factory for this information.
hifigeek1
770 posts
 
You can email the factory: service@audioresearch.com
techalliedsinatown OP
7 posts
 
Thank you guys!
Would any of you send me the schematics of the Ref 3 by email?
My email: michaeltechallied@yahoo.com
techalliedsinatown OP
7 posts
 
To my understanding, do you guys mean parallel a 0.0024mf cap each on all the 4 big coupling caps??

Would you send me the schematic? I will ask a qualified technician to do the soldering job. I am an electronic dummy. Thanks so much.

By the way, where can I find the infini caps ? 0.0024mf is quite difficult to find. Thanks.
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