Topping A90 Discrete 元記事 ※この記事はHiFiGOから許諾を頂いて翻訳したものです。著作権はHiFiGOにあります。 Topping Announces A90 Discrete Headphone Amplifier & Pre-AmplifierTopping has made a big name for itself in the desktop audio scene. The brand is regularly praised for its great sounding desktop gears available at almost ever…