AR SP-4 Preamp- potted modules - diyAudio
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Old 1st February 2008, 12:48 AM   #1
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Join Date: Mar 2007
Location: Canandaigua, NY USA
Default AR SP-4 Preamp- potted modules

Does anyone know if AR ever disclosed the schematics of the potted amplifier modules used in the SP-4 preamp? Particularly if they contain any electrolytics or other parts that are likely to degrade with age?
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