Audio Research Ref 210 Amplifiers w/KT120 Upgrade
Audio Research Ref 210 Amplifiers w/KT120 Upgrade
Audio Research Ref 210 Amplifiers w/KT120 Upgrade
Audio Research Ref 210 Amplifiers w/KT120 Upgrade
Audio Research Ref 210 Amplifiers w/KT120 Upgrade
Audio Research Ref 210 Amplifiers w/KT120 Upgrade
Audio Research Ref 210 Amplifiers w/KT120 Upgrade

Audio Research Ref 210 Amplifiers w/KT120 Upgrade

Used Audio Research REF210 mono blocks in great condition.
Cosmetic Grade: A
Electrical Grade: A

Original customer had them updated by ARC to use the newer KT120 tubes. Excellent condition and always kept in a non-smoking ultra-clean living environment by an owner who takes fastidious care of his equipment. Local Portland Oregon owner.

For performance these sit about 1/2 way between a stock REF210SE and a REF250SE. (from what we've been told). We understand that you can no longer get this upgrade. 

Original box, inst. books, extra set tubes, and manual.