The ADCOM GFP 750 is a part of Adcom's high performance series. It provides very high quality sound that compares with pre/amps costing 3 times as much. Carefully selected high performance MOSFETS are used throughout the unit. It has both balanced and RCA inputs and outputs. Just checked out for like new performance. It's a "sleeper " unit that delivers far more than it price suggests. Fully remote. Condition is between a 8 and 9. ADCOM GFP ARE SELDOM OFFERED FOR SALE.