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Old 22nd July 2009, 11:27 AM   #1
reon is offline reon  Canada
diyAudio Member
Join Date: Mar 2009
Default Precision Fidelity M8

Hi, just found one of these amps, somebody knows the bias current adjustment for this baby?, any help, schematics or service manual will be appreciated.

Thanks, Reon
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Old 19th May 2011, 06:11 PM   #2
diyAudio Member
Join Date: May 2011
Reon I have one I am also looking for a manual. However. One channel on mine has a sticker from factory with a bias of 26ma idle and 76ma operate. The other channel has 16ma idle and 66ma operate. I have installed 2 rectifier bridges and 4 cerafines to make more dual mono.
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Old 19th May 2011, 06:48 PM   #3
llwhtt is offline llwhtt  United States
diyAudio Member
Join Date: Jun 2008
Location: SoCal
I have a hand drawn schematic for this amp. I didn't draw it so don't know how accurate it is. PM me if you want it.

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