Probably less than 50 hours use. The amplifier is in mint condition, both cosmetically and operationally. 100 WPC - 20Hz-30KHz bandwidth - 4 and 8 ohm transformer taps - Slow start turn on sequencing. Power supply - (2) 12AX7, (3) 12AU7, (4) KT120 output tubes - Gold plated RCA inputs - Gold plated binding posts - Machined aluminum faceplate - 4 inputs (phono, line 1,2,3) - 45/60 dB gain phono input +/- 0.1 dB 20Hz - 20KHz - 2W Headphone amplifier - Aluminum remote with volume and mute - Buffered variable outputs (great for subwoofers)! - Active outputs for subwoofer or biamping - 4 RCA inputs (phono, line1, line 2, line3).The item "Rogue Audio Cronus Magnum II Stereo Tube Integrated Amplifier, Mint" is in sale since Monday, January 6, 2020. This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps". The seller is "audiocrazzz51" and is located in Bullhead City, Arizona. This item can be shipped to United States.