Fosi Audio GR70 Tube Headphone Amp - HeadFi

GR70 Vacuum Tube Headphone Amp Featuring two replaceable 5654W and two 6Ж4 vacuum tubes, it offers a customizable auditory experience. Immerse yourself in the authentic warmth and smoothness of analog audio. Pure Tube Amplification Adjustable Impedance and bass & treble Control 2-in-1 Headphone Amp and Preamp Supports 16–300Ω Headphone Impedance