Audio Research PH-5 Phono Preamp. This all tube unit is in pristine condition with less tan 200 hours. Powered with long life (4) 6922/E88C tubes.Owners manual may be downloaded on AR web site. The preamp is in black and has no cosmetic or audio flaws. Includes original AR HD power cord. You may select from 5 pre set load cartridge settings of 47k, 1000, 500, 200, and 100 ohms, using front panel or remote. Shipping and insurance is at owners specifications and expense. All original packaging is in excellent condition.