Working amplifier, not sure of the # of hours on the tubes but they bias fine and sound great. I bought this used, looks like it may have been moded by "Parts Connexion" as the balance control was disconnected, don't know why they do this as I prefer to be able to use the balance. Looks like everything is still there for the balance it just has to be connected again.The volume control sometimes has a slight bit of static but this only seems to happen on startup, after a short time the control is quiet when you turn it. Has the original box and some of the advertising literature included. The item "Jolida JD502 Tube Integrated Amplifier Stereo amp" is in sale since Monday, May 27, 2019. This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps". The seller is "starfishprimew49" and is located in Hummelstown, Pennsylvania. This item can be shipped to United States.