Audio Research SP-4A Preamp Rare and Beautiful. No Defects, Serviced and Cleaned

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Audio Research SP-4A Preamp Rare and Beautiful. No Defects, Serviced and Cleaned:
$766.56

This rare SP-4A (an upgrade from the SP-4) is in amazing condition. It has been so well taken care of since themid-seventies (as well as having spent many years in storage) that not a scratch can be found. It was recently serviced and cleaned inside and out by the dealer. Every RCA input and output has been deoxidized. It got a clean bill of health, with all functions working well. It has a great MM phono stage and tone control bypass feature. Also, The upgrade has two MAIN OUT, so you can run two amps off this preamp. This is a heavy, rock solid unit that looksgreat and plays sweetly.