Audio Research Reference one preamp for sale in silver. 8 of 10 condition. I have a set of factory tubes that have dampers installed as well as a set of NOS Audio Research tubes (no dampers) and 2 remote controls. One of the remotes is not in the greatest of shape but still functions. The preamp is in very good shape and sounds great too. All original packaging as well as the manual are included. $2750 includes shipping by FedEx ground to the lower 48 only and Paypal fees. Payment by Paypal, cashier's check, or personal check. Payment must clear before shipping. Contact me with any questions and thanks for looking.