Manley Labs - Stingray Tube Amp S/N N9512422. Early Stingray amplifier, in excellent condition. Comes with spare set of tubes, original box & manual. The item "Manley Stingray Stereo Tube Amp" is in sale since Friday, June 12, 2020. This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps". The seller is "cjd49" and is located in Denver, North Carolina. This item can be shipped to United States.