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Oppo Headphone Amplifier reviewsOppo HA-1 Headphone Amplifier It was possibly Standard that establish a style by equipping its streamlined, high-worth DACs with a headphone that is competent amplifier. They became, in effect, headphone amplifier, an amalgam of DAC and preamp that was straightforward, as well as the HA1 is from exactly the same mould. Much of... |