The Radial Engineering X-Amp Studio Reamper is an active Class-A circuit design that has been optimized for use with guitars, bass etc. It features a balanced line level input w/peak LED indicator and level control, all Class-A; it also features an isolated transformer output to eliminate hum & buzz from ground loops, 180 degree polarity reverse phase switch and a dual ground lift switch for noise free operation. It also comes with 15volt power supply as well. This item in Brand New condition and has never been used; The front image is only to describe it's connections; the other photos are of the actual item for sale, new in the box.