I bought this for a specific project and ended up not using it so it is a brand new pedal. This is an amazing unit with great reviews. You will need a 9v centre negative tip power supply as it does not come with one. DESCRIPTION Nowadays the Amp-less approach is quickly becoming a trend for modern musicians—like guitarists who appreciate a variety of pedals and amps, but don’t have the luxury of a roadie crew to lug all of them around. Amp Academy features 6 legendary amp models like Vintage (Fender Twin Reverb), Classic (Fender Vibro King), Modern (Mesa Boogie Mark I), Brown (Friedman HBE), Red (Mesa Boogie Dual Rectifier), and Iridium (Bogner Uberschall). Using the iconic TSAC-2K (WHITE-BOX algorithm) Amp Modeling offers you realistic amp feeling and fast playability response. Various Applications: Stage, Studio, Silent Practice The A/B foot switch lets you switch from clean amp style to crunch amp style immediately Neutrik jacks, Alpha pots, NXP RT super powerful DSP (1000MHz), 4 In TI PCM1840 ADC, 4 Out AKM AK4454 DAC 14 Integrated Effects Pedal Modeling USB Audio Streaming Drums and Loops to assist in silent practice