I purchased this item new and unused, but I only tested it once. The original box, instruction manual, and power cord are included. Features: A high-output power amplifier in a pedal format. It can be integrated into a pedalboard and connected directly to a speaker cabinet. Ideal for use with a preamp or multi-effects unit. Specifications: ■ Guitar pedal-type power amplifier ■ Output: 190W±10% @4Ω 120W±10% @8Ω 60W± 10% @16Ω ■ Input Sensitivity: 0.775V±10% ■ S/N Ratio: >97dB ■ Frequency Response: 20Hz-20kHz (±3dB) ■ Input Impedance: Unbalanced 10kΩ, Balanced 20kΩ ■ Input/Output: TRS phone (input), TS phone (output) ■ Current Consumption: 1.2A ■ Power: AC100V, 50/60Hz ■ Dimensions: W163xH110xD62mm ■ Weight: 0.8kg